| City: | Washington, District of Columbia |
| Names to Avoid: | Library Of Congress Handicap |
| County: | District Of Columbia County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:11:11 AM |
| Population: | 12 [See All] |
| Area Codes: | 202 / 771 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 38.9414, -77.0280 |
| Land Area: | 0.013 sq mi |
| Quick Link: |
The National Library Service for the Blind and Print Disabled operates under dedicated ZIP code 20542 in Washington, D.C. Established by Congress in 1931, NLS is a free Library of Congress program that provides braille and audio materials to eligible U.S. residents who cannot use regular print materials. The service distributes specially designed talking book players and operates through a network of cooperating libraries nationwide. This postal designation has served NLS for over two decades.
Located in the Petworth neighborhood of Northwest Washington, the 0.01-square-mile boundary encompasses the NLS facility on Taylor Street. Postal records show 22 ZIP+4 codes routing to 20 sections including Braille Development, Music, Recording Studio, and Network Services. Census data shows 12 residents in this primarily institutional zone. Washington is the valid mailing city.
| Population: | 12 |
| Median Age: | 22.5 |
| Housing Units: | 2 |
| Residential: | 0 |
| Business: | 1 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 20542 has 12 residents and 2 households (average 6.00 persons per household). The median age is 22.5 years, significantly younger than the state (33.9) and significantly younger than the nation (38.8). The gender split is 33.3% male and 66.7% female, which is much lower than the national male share (49.1%), making this a female-majority area. Largest groups are White (41.7%, much lower than the national average of 61.6%) and Hispanic or Latino (33.3%); Hispanic or Latino residents make up 33.3%, which is much higher than the state average (11.3%), and Black or African American share is much higher than the national average (12.4%) and Asian share is much higher than both the state (4.9%) and national averages (6.0%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 12Source: Census DHC |
| 2024 ACS Population Estimate: | 0Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 923.1 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 2Source: Census DHC |
| Average House Value: | $0Source: Census ACS |
| Persons Per Household: | 6.00Source: Census DHC |
| Average Family Size: | 7.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Decennial Census | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 12 | -- | -- | -- |
Median Age: 22.5
Male Median Age: 8.5
Female Median Age: 26
| 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 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Female | 0 | 1 | 0 | 1 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Total | 2 | 1 | 2 | 1 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| White: | 5 | 33.33% |
| Black: | 3 | 20.00% |
| Hispanic:* | 4 | 26.67% |
| Asian: | 3 | 20.00% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 15 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 4 | 33.33% | 8.5 years |
| Females: | 8 | 66.67% | 26.0 years |
| Total: | 12 | 100% | 22.5 years |
| Native, born in the United States: | 0 | 0% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0% |
| Foreign born, naturalized U.S. citizen: | 0 | 0% |
| Foreign born, not a U.S. citizen: | 0 | 0% |
| Total Population: | 0 | 100% |
| Total Native Population: | 0 | 0% |
| Total Foreign-born Population: | 0 | 0% |
ZIP Code 20542 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes. 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: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 20542 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 6,263,796 people, about 0.00% of whom live in ZIP Code 20542, and is subdivided into the Washington, DC-MD division. It covers 0.013 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: | 6,263,796Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | 0.013 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 20542 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 January 1, 2026.