| City: | Washington, District of Columbia |
| City Alias: | Fort Mcnair |
| County: | District Of Columbia County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 9:52:33 PM |
| Population: | 72 [See All] |
| Area Codes: | 202 / 771 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 38.8661, -77.0167 |
| Land Area: | 0.137 sq mi |
| Quick Link: |
The National Defense University operates under dedicated ZIP code 20319 at Fort Lesley J. McNair in Washington, D.C. Established in 1976, NDU is the premier institution for Joint Professional Military Education and prepares senior military officers and civilian leaders for national security responsibilities. The university includes the Eisenhower School for National Security, Joint Forces Staff College, College of Information and Cyberspace, and College of International Security Affairs. This postal designation has been in place for over two decades.
Postal records show 64 ZIP+4 codes routing to the National Defense University at Fort McNair in Southwest Washington. The 0.17-square-mile campus sits between the Anacostia River and Washington Channel. Census data shows a population of 72 with a median age of 35 and per capita income of $60,042. Census Business Patterns shows 4 establishments with 70 employees. Both Fort McNair and Washington are valid mailing cities for this designation.
| Population: | 72 |
| Median Age: | 35.0 |
| Housing Units: | 20 |
| Establishments: | 4 |
| Employment: | 70 |
| Residential: | 0 |
| Business: | 1 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 20319 has 72 residents and 10 households (average 7.20 persons per household). The median age is 35.0 years, slightly older than the state (33.9) and younger than the nation (38.8). The gender split is 40.3% male and 59.7% female, which is much lower than the national male share (49.1%), making this a female-majority area. Largest groups are White (38.9%, much lower than the national average of 61.6%) and Hispanic or Latino (26.4%); Hispanic or Latino residents make up 26.4%, which is much higher than the state average (11.3%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 72Source: Census DHC |
| 2024 ACS Population Estimate: | 23Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 525.5 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 10Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 7.20Source: Census DHC |
| Average Family Size: | 35.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 101 | 106 | 104 | 89 | 89 | 69 | 53 | 42 | 36 | 48 | 50 | 43 | 33 | 23 |
| Decennial Census | 84 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 72 | -- | -- | -- | -- |
Median Age: 35
Male Median Age: 40.1
Female Median Age: 33.9
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 2 | 2 | 1 | 1 | 2 | 4 | 2 | 4 | 0 | 0 | 0 | 1 | 2 | 2 | 0 | 0 | 6 |
| Female | 5 | 1 | 1 | 3 | 2 | 3 | 9 | 1 | 3 | 0 | 0 | 10 | 1 | 2 | 0 | 0 | 1 | 1 |
| Total | 5 | 3 | 3 | 4 | 3 | 5 | 13 | 3 | 7 | 0 | 0 | 10 | 2 | 4 | 2 | 0 | 1 | 7 |
| White: | 28 | 40.00% |
| Black: | 9 | 12.86% |
| Hispanic:* | 19 | 27.14% |
| Asian: | 4 | 5.71% |
| American Indian: | 1 | 1.43% |
| Hawaiian: | 0 | 0% |
| Other: | 9 | 12.86% |
| Total: | 70 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 29 | 40.28% | 40.1 years |
| Females: | 43 | 59.72% | 33.9 years |
| Total: | 72 | 100% | 35.0 years |
| Native, born in the United States: | 23 | 100.00% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 0 | 0.00% |
| Total Population: | 23 | 100% |
| Total Native Population: | 23 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2024, the Median household income is $0, which is far less than the state median ($106,287), and above its 2019 pre-pandemic level by $0. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $0 and female is $0, which is well under the state female median ($93,424), with a current gap of $0 that has narrowed from 2011 to 2024. The labor-force participation rate is 191.7%, which is considerably higher than the national rate (63.5%). The unemployment rate is 0.0%, which is much lower than the state rate (6.4%). The largest occupation group is Production (100.0%).
Explore More: Income Over Time Household Income Employment Status By Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Family Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $25,446 | $26,923 | $25,556 | $25,313 | $21,343 | $21,220 | $21,192 | $20,132 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 12 | 100.00% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 0 | 0.00% |
| Total: | 12 | 100% |
| Management, business, science, and arts: | 0 | 0.00% |
| Service: | 0 | 0.00% |
| Sales and Office: | 0 | 0.00% |
| Natural resources, construction, and maintenance: | 0 | 0.00% |
| Production, transportation, and material moving: | 12 | 100.00% |
| Total Civilian Employed Population: | 12 | 100% |
In 2024, 0.00% of adults (25+) have a bachelor's degree or higher, which is on par with the state rate (63.60%). High school or higher is 100.00%, which is comparable to the national rate (89.40%). The uninsured rate is -666,666,666.00%, which is far lower than the national rate (8.60%). Private coverage is -666,666,666.00%, which is markedly below the state rate (72.40%). Public coverage is -666,666,666.00%, which is far lower than the national rate (36.30%). The share of people in poverty is -666,666,666.00%, which is markedly below the state rate (10.70%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Among residents ages 3+, the largest enrollment group is college (100.00%). College enrollment is 100.00%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 0 | 0.00% |
| High school graduate (includes equivalency): | 0 | 0.00% |
| Some college, no degree: | 8 | 100.00% |
| Associate's degree: | 0 | 0.00% |
| Bachelor's degree: | 0 | 0.00% |
| Graduate or professional degree: | 0 | 0.00% |
| Total: | 8 | 100% |
| High school or higher: | 8 | 100.00% |
| Bachelor's degree or higher: | 0 | 0.00% |
| Private Insurance: | 0 | 0% |
| Public Insurance: | 0 | 0% |
| No Insurance: | 0 | 0% |
| Total: | 0 | 100% |
| Has Health Insurance: | 0 | 0% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 0 | 0.00% |
| High school (grades 9-12): | 0 | 0.00% |
| College or graduate school: | 3 | 100.00% |
| Total: | 3 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 0 | 0.00% |
ZIP Code 20319 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 45 people with an annual payroll of $4,269,000. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 1Source: USPS |
| Total Delivery Receptacles: | 1Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 4Source: CBP |
| 1st Quarter Payroll: | $1,169,000Source: CBP |
| Annual Payroll: | $4,269,000Source: CBP |
| # of Employees: | 45Source: CBP |
ZIP Code 20319 is located in District Of Columbia County, District of Columbia, within the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area (CBSA 47900) and District of Columbia's 98th Congressional District. This Metro area has a population of 5,582,170 people, about 0.00% of whom live in ZIP Code 20319, and is subdivided into the Washington, DC-MD division. It covers 0.137 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Washington-Arlington-Alexandria, DC-VA-MD-WVSource: Census |
| CBSA Number: | 47900Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Washington, DC-MD (CBSA Div 47764)Source: Census |
| CBSA Population: | 5,582,170Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | 0.137 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 98Source: USPS |
| Congressional Land Area: | 61.40 sq miSource: Census |
| PMSA: | Washington, DC-MD-VA-WV PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 1150000Source: Census |
| Place Name: | Washington city; District of ColumbiaSource: Census |
We could not locate which school district 20319 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.