Special Report

ZIP Code With the Most Veterans in Every State

Roberto Galan / iStock Editorial via Getty Images

Veterans have made sacrifices for their country that often follow them long after their service. Close to half of those who served after the terror attacks of 9/11 say they had an emotionally traumatic or distressing experience while serving, and about one in four of all veterans say readjusting to civilian life was at least somewhat difficult, according to a Pew Research study. 

Still, the same study also found that over half of all veterans say their service provided them with useful skills and training for the civilian job market, and that veterans are less likely to live in poverty and more likely to have higher incomes than their nonveteran counterparts. 

Veterans of the armed service reside in communities across the country, but some parts of the country have a considerably higher concentration of military vets than others. Using data from the U.S. Census Bureau, 24/7 Wall St. identified the ZIP code in every state with the highest share of veterans.

Among the places on this list, the share of the adult civilian population with a history of military service ranges from about 12% to over 50%, and in most cases exceeds the statewide share by at least 15 percentage points. For context, 7.1% of the total U.S. civilian adult population have served in the military. Here is a look at the U.S. presidents who have served in the military. 

Many of the ZIP codes on this list are in or around major military installations – including Fort Knox, Kentucky and West Point, New York – as certain bases around the country offer affordable housing options for former service members.

It is important to note that while many veterans chose to enlist out of a sense of patriotic duty, many living veterans did not choose to serve and were drafted into service during the Vietnam War. In several ZIP codes on this list, those whose period of service is confined to the Vietnam Era account for over a third of the total veteran population. Here is a look at the wars that claimed the most American lives

Click here to see where the most veterans live in every state 
Click here to read our detailed methodology

Alabama: 36856
> Location: Fort Mitchell
> Civilian adults who have served in the military: 33.0% (Alabama: 8.6%)
> Veterans who first enlisted after 9/11: 45.0% (Alabama: 13.7%)
> Veterans who served in the Vietnam Era only: 3.2% (Alabama: 31.6%)
> Veterans who served during the Korean War only: 3.8% (Alabama: 5.4%)
> No. of zip codes considered in ranking: 456

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Source: JHVEPhoto / iStock via Getty Images

Alaska: 99702
> Location: Eielson
> Civilian adults who have served in the military: 35.4% (Alaska: 12.1%)
> Veterans who first enlisted after 9/11: 78.2% (Alaska: 21.8%)
> Veterans who served in the Vietnam Era only: 0.0% reported (Alaska: 26.2%)
> Veterans who served during the Korean War only: 1.4% (Alaska: 2.5%)
> No. of zip codes considered in ranking: 57

Source: razyph / iStock via Getty Images

Arizona: 85613
> Location: Sierra Vista
> Civilian adults who have served in the military: 40.1% (Arizona: 8.9%)
> Veterans who first enlisted after 9/11: 73.8% (Arizona: 13.0%)
> Veterans who served in the Vietnam Era only: 0.4% (Arizona: 34.2%)
> Veterans who served during the Korean War only: 0.0% reported (Arizona: 6.8%)
> No. of zip codes considered in ranking: 308

Source: BOB WESTON / iStock via Getty Images

Arkansas: 72087
> Location: Hot Springs Village
> Civilian adults who have served in the military: 24.5% (Arkansas: 8.3%)
> Veterans who first enlisted after 9/11: 0.0% reported (Arkansas: 13.1%)
> Veterans who served in the Vietnam Era only: 20.3% (Arkansas: 34.0%)
> Veterans who served during the Korean War only: 5.2% (Arkansas: 5.9%)
> No. of zip codes considered in ranking: 287

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Source: Sundry Photography / iStock via Getty Images

California: 93437
> Location: Vandenberg
> Civilian adults who have served in the military: 33.2% (California: 5.0%)
> Veterans who first enlisted after 9/11: 92.3% (California: 14.9%)
> Veterans who served in the Vietnam Era only: 0.0% reported (California: 32.5%)
> Veterans who served during the Korean War only: 0.0% reported (California: 7.5%)
> No. of zip codes considered in ranking: 1,281

Source: via Facebook / courtesy of Security-Widefield, Colorado

Colorado: 80925
> Location: Security-Widefield
> Civilian adults who have served in the military: 26.7% (Colorado: 8.4%)
> Veterans who first enlisted after 9/11: 33.2% (Colorado: 16.8%)
> Veterans who served in the Vietnam Era only: 4.7% (Colorado: 30.3%)
> Veterans who served during the Korean War only: 0.0% reported (Colorado: 5.0%)
> No. of zip codes considered in ranking: 298

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Connecticut: 06426
> Location: Essex Village
> Civilian adults who have served in the military: 17.3% (Connecticut: 5.7%)
> Veterans who first enlisted after 9/11: 13.3% (Connecticut: 10.9%)
> Veterans who served in the Vietnam Era only: 24.4% (Connecticut: 34.3%)
> Veterans who served during the Korean War only: 15.4% (Connecticut: 10.3%)
> No. of zip codes considered in ranking: 233

Source: Robert Kirk / iStock Unreleased via Getty Images

Delaware: 19930
> Location: Bethany Beach
> Civilian adults who have served in the military: 18.5% (Delaware: 8.6%)
> Veterans who first enlisted after 9/11: 12.0% (Delaware: 10.3%)
> Veterans who served in the Vietnam Era only: 56.5% (Delaware: 35.9%)
> Veterans who served during the Korean War only: 5.7% (Delaware: 6.1%)
> No. of zip codes considered in ranking: 49

Source: Norm Lane / iStock via Getty Images

Florida: 32508
> Location: Warrington
> Civilian adults who have served in the military: 50.2% (Florida: 8.4%)
> Veterans who first enlisted after 9/11: 92.4% (Florida: 11.2%)
> Veterans who served in the Vietnam Era only: 0.7% (Florida: 32.1%)
> Veterans who served during the Korean War only: 0.0% reported (Florida: 7.5%)
> No. of zip codes considered in ranking: 872

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Source: Kruck20 / iStock via Getty Images

Georgia: 30905
> Location: Augusta-Richmond County
> Civilian adults who have served in the military: 34.7% (Georgia: 7.9%)
> Veterans who first enlisted after 9/11: 66.6% (Georgia: 14.9%)
> Veterans who served in the Vietnam Era only: 1.1% (Georgia: 29.1%)
> Veterans who served during the Korean War only: 0.0% reported (Georgia: 4.2%)
> No. of zip codes considered in ranking: 568

Source: aapsky / iStock via Getty Images

Hawaii: 96737
> Location: Hawaiian Ocean View
> Civilian adults who have served in the military: 21.4% (Hawaii: 9.1%)
> Veterans who first enlisted after 9/11: 8.8% (Hawaii: 19.5%)
> Veterans who served in the Vietnam Era only: 26.6% (Hawaii: 30.7%)
> Veterans who served during the Korean War only: 0.0% reported (Hawaii: 6.0%)
> No. of zip codes considered in ranking: 66

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Idaho: 83647
> Location: Mountain Home
> Civilian adults who have served in the military: 23.5% (Idaho: 8.9%)
> Veterans who first enlisted after 9/11: 22.2% (Idaho: 11.6%)
> Veterans who served in the Vietnam Era only: 18.5% (Idaho: 35.6%)
> Veterans who served during the Korean War only: 0.9% (Idaho: 6.2%)
> No. of zip codes considered in ranking: 126

Source: Antwon McMullen / iStock via Getty Images

Illinois: 60088
> Location: North Chicago
> Civilian adults who have served in the military: 53.1% (Illinois: 5.6%)
> Veterans who first enlisted after 9/11: 94.1% (Illinois: 11.9%)
> Veterans who served in the Vietnam Era only: 2.5% (Illinois: 34.6%)
> Veterans who served during the Korean War only: 0.0% reported (Illinois: 7.9%)
> No. of zip codes considered in ranking: 817

Indiana: 47451
> Location: Oolitic
> Civilian adults who have served in the military: 24.9% (Indiana: 7.3%)
> Veterans who first enlisted after 9/11: 3.5% (Indiana: 12.1%)
> Veterans who served in the Vietnam Era only: 73.9% (Indiana: 33.7%)
> Veterans who served during the Korean War only: 3.5% (Indiana: 6.8%)
> No. of zip codes considered in ranking: 528

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Iowa: 51035
> Location: Marcus
> Civilian adults who have served in the military: 17.1% (Iowa: 7.4%)
> Veterans who first enlisted after 9/11: 0.0% reported (Iowa: 11.2%)
> Veterans who served in the Vietnam Era only: 12.5% (Iowa: 35.1%)
> Veterans who served during the Korean War only: 6.7% (Iowa: 9.0%)
> No. of zip codes considered in ranking: 383

Source: via Facebook / courtesy of Ogden Community Center

Kansas: 66517
> Location: Ogden
> Civilian adults who have served in the military: 29.9% (Kansas: 7.9%)
> Veterans who first enlisted after 9/11: 22.2% (Kansas: 14.8%)
> Veterans who served in the Vietnam Era only: 29.5% (Kansas: 32.9%)
> Veterans who served during the Korean War only: 19.1% (Kansas: 7.3%)
> No. of zip codes considered in ranking: 292

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Kentucky: 40121
> Location: Fort Knox
> Civilian adults who have served in the military: 26.3% (Kentucky: 7.5%)
> Veterans who first enlisted after 9/11: 62.6% (Kentucky: 12.0%)
> Veterans who served in the Vietnam Era only: 1.9% (Kentucky: 34.4%)
> Veterans who served during the Korean War only: 0.0% reported (Kentucky: 5.4%)
> No. of zip codes considered in ranking: 375

Source: scguard / Public Domain / Flickr

Louisiana: 71459
> Location: Fort Polk South
> Civilian adults who have served in the military: 29.7% (Louisiana: 6.8%)
> Veterans who first enlisted after 9/11: 86.0% (Louisiana: 14.0%)
> Veterans who served in the Vietnam Era only: 0.0% reported (Louisiana: 33.3%)
> Veterans who served during the Korean War only: 0.0% reported (Louisiana: 5.7%)
> No. of zip codes considered in ranking: 328

Maine: 04020
> Location: Cornish
> Civilian adults who have served in the military: 21.4% (Maine: 9.3%)
> Veterans who first enlisted after 9/11: 41.7% (Maine: 8.5%)
> Veterans who served in the Vietnam Era only: 25.4% (Maine: 35.7%)
> Veterans who served during the Korean War only: 1.2% (Maine: 7.0%)
> No. of zip codes considered in ranking: 236

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Source: garylestrangephotography / iStock Editorial via Getty Images

Maryland: 20762
> Location: Andrews
> Civilian adults who have served in the military: 43.0% (Maryland: 7.7%)
> Veterans who first enlisted after 9/11: 60.8% (Maryland: 14.2%)
> Veterans who served in the Vietnam Era only: 0.0% reported (Maryland: 27.8%)
> Veterans who served during the Korean War only: 0.0% reported (Maryland: 5.5%)
> No. of zip codes considered in ranking: 321

Massachusetts: 01083
> Location: Warren
> Civilian adults who have served in the military: 17.0% (Massachusetts: 5.3%)
> Veterans who first enlisted after 9/11: 17.1% (Massachusetts: 11.4%)
> Veterans who served in the Vietnam Era only: 23.1% (Massachusetts: 33.5%)
> Veterans who served during the Korean War only: 0.0% reported (Massachusetts: 10.1%)
> No. of zip codes considered in ranking: 441

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Source: Notorious4life / Public Domain / Wikimedia Commons

Michigan: 49853
> Location: Mc Millan
> Civilian adults who have served in the military: 19.8% (Michigan: 6.8%)
> Veterans who first enlisted after 9/11: 1.4% (Michigan: 9.8%)
> Veterans who served in the Vietnam Era only: 48.4% (Michigan: 36.5%)
> Veterans who served during the Korean War only: 5.4% (Michigan: 7.8%)
> No. of zip codes considered in ranking: 766

Minnesota: 56554
> Location: Lake Park
> Civilian adults who have served in the military: 21.1% (Minnesota: 6.8%)
> Veterans who first enlisted after 9/11: 2.1% (Minnesota: 11.4%)
> Veterans who served in the Vietnam Era only: 68.8% (Minnesota: 36.8%)
> Veterans who served during the Korean War only: 2.8% (Minnesota: 9.2%)
> No. of zip codes considered in ranking: 504

Source: DenisTangneyJr / iStock via Getty Images

Mississippi: 39503
> Location: Gulfport
> Civilian adults who have served in the military: 17.7% (Mississippi: 7.3%)
> Veterans who first enlisted after 9/11: 20.9% (Mississippi: 14.6%)
> Veterans who served in the Vietnam Era only: 24.9% (Mississippi: 30.4%)
> Veterans who served during the Korean War only: 2.5% (Mississippi: 5.1%)
> No. of zip codes considered in ranking: 257

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Missouri: 65336
> Location: Knob Noster
> Civilian adults who have served in the military: 32.4% (Missouri: 8.3%)
> Veterans who first enlisted after 9/11: 36.4% (Missouri: 12.0%)
> Veterans who served in the Vietnam Era only: 8.2% (Missouri: 35.2%)
> Veterans who served during the Korean War only: 5.9% (Missouri: 6.9%)
> No. of zip codes considered in ranking: 539

Source: U.S. Forest Service / Public Domain / Wikimedia Commons

Montana: 59828
> Location: Corvallis
> Civilian adults who have served in the military: 22.0% (Montana: 10.3%)
> Veterans who first enlisted after 9/11: 34.4% (Montana: 14.6%)
> Veterans who served in the Vietnam Era only: 34.1% (Montana: 35.4%)
> Veterans who served during the Korean War only: 4.1% (Montana: 5.8%)
> No. of zip codes considered in ranking: 114

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Nebraska: 68123
> Location: Bellevue
> Civilian adults who have served in the military: 20.9% (Nebraska: 7.9%)
> Veterans who first enlisted after 9/11: 26.6% (Nebraska: 13.1%)
> Veterans who served in the Vietnam Era only: 16.6% (Nebraska: 32.4%)
> Veterans who served during the Korean War only: 0.5% (Nebraska: 7.9%)
> No. of zip codes considered in ranking: 200

Source: Pavliha / iStock Unreleased via Getty Images

Nevada: 89085
> Location: North Las Vegas
> Civilian adults who have served in the military: 25.9% (Nevada: 8.8%)
> Veterans who first enlisted after 9/11: 23.8% (Nevada: 13.5%)
> Veterans who served in the Vietnam Era only: 16.6% (Nevada: 32.6%)
> Veterans who served during the Korean War only: 2.4% (Nevada: 5.3%)
> No. of zip codes considered in ranking: 111

Source: DenisTangneyJr / iStock via Getty Images

New Hampshire: 03868
> Location: Rochester
> Civilian adults who have served in the military: 15.1% (New Hampshire: 8.5%)
> Veterans who first enlisted after 9/11: 10.1% (New Hampshire: 9.9%)
> Veterans who served in the Vietnam Era only: 46.9% (New Hampshire: 34.4%)
> Veterans who served during the Korean War only: 2.0% (New Hampshire: 7.0%)
> No. of zip codes considered in ranking: 180

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New Jersey: 08641
> Location: McGuire
> Civilian adults who have served in the military: 28.4% (New Jersey: 4.5%)
> Veterans who first enlisted after 9/11: 55.4% (New Jersey: 10.8%)
> Veterans who served in the Vietnam Era only: 0.0% reported (New Jersey: 35.3%)
> Veterans who served during the Korean War only: 0.0% reported (New Jersey: 10.5%)
> No. of zip codes considered in ranking: 509

Source: Sean Pavone / iStock via Getty Images

New Mexico: 87116
> Location: Albuquerque
> Civilian adults who have served in the military: 38.3% (New Mexico: 8.8%)
> Veterans who first enlisted after 9/11: 70.5% (New Mexico: 13.0%)
> Veterans who served in the Vietnam Era only: 7.2% (New Mexico: 34.2%)
> Veterans who served during the Korean War only: 0.0% reported (New Mexico: 6.2%)
> No. of zip codes considered in ranking: 131

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Source: DepthofField / iStock via Getty Images

New York: 10996
> Location: West Point
> Civilian adults who have served in the military: 58.4% (New York: 4.4%)
> Veterans who first enlisted after 9/11: 88.9% (New York: 11.6%)
> Veterans who served in the Vietnam Era only: 0.0% reported (New York: 33.5%)
> Veterans who served during the Korean War only: 0.0% reported (New York: 9.7%)
> No. of zip codes considered in ranking: 1,172

Source: Courtesy of City of Jacksonville

North Carolina: 28547
> Location: Jacksonville
> Civilian adults who have served in the military: 28.5% (North Carolina: 8.2%)
> Veterans who first enlisted after 9/11: 94.1% (North Carolina: 14.9%)
> Veterans who served in the Vietnam Era only: 1.3% (North Carolina: 30.7%)
> Veterans who served during the Korean War only: 0.0% reported (North Carolina: 5.2%)
> No. of zip codes considered in ranking: 622

North Dakota: 58704
> Location: Minot
> Civilian adults who have served in the military: 25.2% (North Dakota: 8.0%)
> Veterans who first enlisted after 9/11: 80.9% (North Dakota: 18.2%)
> Veterans who served in the Vietnam Era only: 0.0% reported (North Dakota: 31.1%)
> Veterans who served during the Korean War only: 0.0% reported (North Dakota: 6.2%)
> No. of zip codes considered in ranking: 73

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Source: NNehring / iStock Unreleased via Getty Images

Ohio: 45433
> Location: Wright-Patterson
> Civilian adults who have served in the military: 30.7% (Ohio: 7.6%)
> Veterans who first enlisted after 9/11: 59.0% (Ohio: 11.1%)
> Veterans who served in the Vietnam Era only: 0.0% reported (Ohio: 34.5%)
> Veterans who served during the Korean War only: 0.0% reported (Ohio: 6.9%)
> No. of zip codes considered in ranking: 858

Source: DenisTangneyJr / iStock via Getty Images

Oklahoma: 73503
> Location: Lawton
> Civilian adults who have served in the military: 28.9% (Oklahoma: 9.0%)
> Veterans who first enlisted after 9/11: 84.4% (Oklahoma: 14.9%)
> Veterans who served in the Vietnam Era only: 0.0% reported (Oklahoma: 33.7%)
> Veterans who served during the Korean War only: 0.0% reported (Oklahoma: 5.6%)
> No. of zip codes considered in ranking: 371

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Oregon: 97497
> Location: Wolf Creek
> Civilian adults who have served in the military: 22.0% (Oregon: 8.3%)
> Veterans who first enlisted after 9/11: 10.2% (Oregon: 11.8%)
> Veterans who served in the Vietnam Era only: 55.1% (Oregon: 36.3%)
> Veterans who served during the Korean War only: 13.1% (Oregon: 7.1%)
> No. of zip codes considered in ranking: 250

Pennsylvania: 18415
> Location: Damascus
> Civilian adults who have served in the military: 22.0% (Pennsylvania: 7.2%)
> Veterans who first enlisted after 9/11: 10.4% (Pennsylvania: 10.3%)
> Veterans who served in the Vietnam Era only: 19.7% (Pennsylvania: 35.0%)
> Veterans who served during the Korean War only: 15.7% (Pennsylvania: 8.6%)
> No. of zip codes considered in ranking: 1,082

Rhode Island: 02817
> Location: West Greenwich
> Civilian adults who have served in the military: 11.9% (Rhode Island: 6.1%)
> Veterans who first enlisted after 9/11: 3.9% (Rhode Island: 11.7%)
> Veterans who served in the Vietnam Era only: 36.1% (Rhode Island: 35.5%)
> Veterans who served during the Korean War only: 0.0% reported (Rhode Island: 9.0%)
> No. of zip codes considered in ranking: 59

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South Carolina: 29040
> Location: Dalzell
> Civilian adults who have served in the military: 20.3% (South Carolina: 9.1%)
> Veterans who first enlisted after 9/11: 32.0% (South Carolina: 13.3%)
> Veterans who served in the Vietnam Era only: 24.2% (South Carolina: 32.7%)
> Veterans who served during the Korean War only: 3.3% (South Carolina: 4.7%)
> No. of zip codes considered in ranking: 316

South Dakota: 57706
> Location: Box Elder
> Civilian adults who have served in the military: 25.7% (South Dakota: 8.5%)
> Veterans who first enlisted after 9/11: 82.6% (South Dakota: 13.4%)
> Veterans who served in the Vietnam Era only: 2.4% (South Dakota: 34.1%)
> Veterans who served during the Korean War only: 0.0% reported (South Dakota: 7.8%)
> No. of zip codes considered in ranking: 102

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Source: DenisTangneyJr / iStock via Getty Images

Tennessee: 37191
> Location: Woodlawn
> Civilian adults who have served in the military: 28.8% (Tennessee: 8.2%)
> Veterans who first enlisted after 9/11: 17.0% (Tennessee: 13.6%)
> Veterans who served in the Vietnam Era only: 12.1% (Tennessee: 33.2%)
> Veterans who served during the Korean War only: 1.6% (Tennessee: 5.5%)
> No. of zip codes considered in ranking: 485

Source: DenisTangneyJr / iStock via Getty Images

Texas: 76311
> Location: Wichita Falls
> Civilian adults who have served in the military: 55.9% (Texas: 6.8%)
> Veterans who first enlisted after 9/11: 89.6% (Texas: 18.1%)
> Veterans who served in the Vietnam Era only: 1.0% (Texas: 29.1%)
> Veterans who served during the Korean War only: 0.0% reported (Texas: 4.7%)
> No. of zip codes considered in ranking: 1,319

Utah: 84056
> Location: Clearfield
> Civilian adults who have served in the military: 29.0% (Utah: 5.4%)
> Veterans who first enlisted after 9/11: 56.5% (Utah: 16.4%)
> Veterans who served in the Vietnam Era only: 0.0% reported (Utah: 31.5%)
> Veterans who served during the Korean War only: 0.0% reported (Utah: 6.8%)
> No. of zip codes considered in ranking: 140

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Vermont: 05767
> Location: Rochester
> Civilian adults who have served in the military: 16.0% (Vermont: 6.9%)
> Veterans who first enlisted after 9/11: 0.0% reported (Vermont: 9.5%)
> Veterans who served in the Vietnam Era only: 33.5% (Vermont: 36.8%)
> Veterans who served during the Korean War only: 6.8% (Vermont: 7.7%)
> No. of zip codes considered in ranking: 114

Source: Edward Palm / iStock Editorial via Getty Images

Virginia: 22134
> Location: Quantico Base
> Civilian adults who have served in the military: 36.9% (Virginia: 10.3%)
> Veterans who first enlisted after 9/11: 76.2% (Virginia: 17.0%)
> Veterans who served in the Vietnam Era only: 0.4% (Virginia: 24.4%)
> Veterans who served during the Korean War only: 0.0% reported (Virginia: 4.0%)
> No. of zip codes considered in ranking: 561

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Washington: 98327
> Location: DuPont
> Civilian adults who have served in the military: 34.8% (Washington: 8.9%)
> Veterans who first enlisted after 9/11: 35.5% (Washington: 14.8%)
> Veterans who served in the Vietnam Era only: 13.2% (Washington: 32.1%)
> Veterans who served during the Korean War only: 1.4% (Washington: 5.0%)
> No. of zip codes considered in ranking: 383

Source: NoDerog / Getty Images

West Virginia: 26060
> Location: Valley Grove
> Civilian adults who have served in the military: 17.6% (West Virginia: 8.7%)
> Veterans who first enlisted after 9/11: 14.1% (West Virginia: 10.3%)
> Veterans who served in the Vietnam Era only: 16.7% (West Virginia: 37.3%)
> Veterans who served during the Korean War only: 9.4% (West Virginia: 6.8%)
> No. of zip codes considered in ranking: 206

Wisconsin: 54872
> Location: Siren
> Civilian adults who have served in the military: 16.5% (Wisconsin: 7.0%)
> Veterans who first enlisted after 9/11: 9.8% (Wisconsin: 11.1%)
> Veterans who served in the Vietnam Era only: 38.2% (Wisconsin: 35.3%)
> Veterans who served during the Korean War only: 16.0% (Wisconsin: 8.2%)
> No. of zip codes considered in ranking: 574

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Source: benkrut / iStock via Getty Images

Wyoming: 82009
> Location: Cheyenne
> Civilian adults who have served in the military: 17.0% (Wyoming: 10.0%)
> Veterans who first enlisted after 9/11: 10.6% (Wyoming: 14.2%)
> Veterans who served in the Vietnam Era only: 24.2% (Wyoming: 35.2%)
> Veterans who served during the Korean War only: 6.4% (Wyoming: 5.5%)
> No. of zip codes considered in ranking: 47

Methodology 

To determine the ZIP code with the most veterans in every state, 24/7 Wall St. reviewed five-year estimates of the share of the civilian population 18 years and over who are veterans from the U.S. Census Bureau’s 2020 American Community Survey.

We used ZIP code tabulation areas — a census geography type which defines areal representations of United States Postal Service ZIP codes (USPS ZIP codes do not define geographic boundaries but instead are a network of mail delivery routes in a service area). We refer to census ZCTAs as ZIP codes.

ZIP codes were excluded if the share of veterans was not available in the 2020 ACS, if the civilian population 18 and over was less than 1,000, or if the sampling error associated with a ZIP code’s data was deemed too high.

The sampling error was defined as too high if the coefficient of variation — a statistical assessment of how reliable an estimate is — for a ZIP code’s share of veterans was above 15% and greater than two standard deviations above the mean CV for all ZIP codes’ veteran shares. We similarly excluded ZIP codes that had a sampling error too high for their population, using the same definition.

ZIP codes were ranked based on the share of the population 18 and over who are veterans. To break ties, we used the number of veterans.

Additional information on the share of veterans who served after 9/11, in the Vietnam Era, and during the Korean War are also five-year estimates from the 2020 ACS. Because the Census Bureau didn’t release one-year estimates for 2020 due to data collection issues caused by the COVID-19 pandemic, all ACS data are five-year estimates.

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