20018 ZIP Code, Washington, DC
20018 is a ZIP code in Washington, District of Columbia in District of Columbia. It covers 3.0 square miles of land. The closest ZIP codes are 20712, 20017 and 20722. 19,562 people live here in 9,021 households. At about 6,482 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (52% own). Median household income is $90,639, below the District of Columbia median of $109,870.
Quick facts
- Mailing city: Washington, DC
- County: District of Columbia County
- Land area: 3.0 sq mi
- Population: 19,562
- Median household income: $90,639
- Carrier routes: 16 (9,877 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 19,562 |
| Households | 9,021 |
| Median household income | $90,639 |
| Income per person | $61,245 |
| Median age | 39.6 |
| Homeowners | 52.1% |
| Median home value | $697,000 |
| Median rent | $1,295 |
| Bachelor's degree or higher | 44.8% |
| Average commute (minutes) | 33.3 |
| Households with kids under 18 | 21.7% |
| Moved in the past year | 16.2% |
| Below the poverty line | 14.9% |
| Broadband internet | 86.3% |
| Speak a non-English language at home | 12.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 5.0% |
| $10–15K | 7.4% |
| $15–25K | 7.7% |
| $25–35K | 3.4% |
| $35–50K | 7.2% |
| $50–75K | 13.3% |
| $75–100K | 8.8% |
| $100–150K | 15.7% |
| $150–200K | 9.5% |
| $200K+ | 22.1% |
Age
| % of all residents | Value |
|---|---|
| <10 | 13.3% |
| 10–19 | 8.2% |
| 20–24 | 5.0% |
| 25–34 | 13.6% |
| 35–44 | 20.4% |
| 45–54 | 11.8% |
| 55–64 | 11.0% |
| 65–74 | 9.3% |
| 75+ | 7.4% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 37.2% |
| Owned outright | 11.1% |
| Rented | 43.6% |
| Vacant | 8.1% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 30.7% |
| Townhome | 23.0% |
| 2–4 units | 7.6% |
| 5–19 units | 8.5% |
| 20+ units | 29.9% |
| Mobile / other | 0.3% |
Businesses in 20018
478 business establishments with 10,789 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 71
- Retail Trade: 70
- Accommodation and Food Services: 59
- Professional, Scientific, and Technical Services: 57
- Other Services (except Public Administration): 53
- Construction: 29
- Real Estate and Rental and Leasing: 29
- Wholesale Trade: 23
EDDM carrier routes
20018 has 16 USPS carrier routes with 9,877 residential and 528 business mailboxes. Open the EDDM route map.
Carrier routes in 20018
20018 has 16 USPS carrier routes (16 city (C)) with 9,877 residential and 528 business mailboxes. Routes range from 309 homes (C018) to 1,479 homes (C002); the median route has 452 homes. The Census counted 9,021 households in 20018 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 11 |
| 500–749 | 1 |
| 750–999 | 2 |
| 1,000–1,499 | 2 |
| 1,500+ | 0 |
Best routes in 20018 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C025 — USPS business mailboxes 132, 465 homes
- Route C001 — USPS business mailboxes 74, 425 homes
- Route C006 — USPS business mailboxes 71, 902 homes
- Route C002 — USPS business mailboxes 52, 1,479 homes
- Route C010 — USPS business mailboxes 52, 486 homes
Select these 5 routes on the route map
Every carrier route in 20018
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 425 | 74 | $59,641 | — | — | — |
| C002 | City | 1,479 | 52 | $81,739 | — | — | — |
| C003 | City | 414 | 18 | $115,341 | — | — | — |
| C005 | City | 498 | 3 | $107,921 | — | — | — |
| C006 | City | 902 | 71 | $107,921 | — | — | — |
| C010 | City | 486 | 52 | $77,791 | — | — | — |
| C011 | City | 363 | 6 | $200,001+ | — | — | — |
| C012 | City | 729 | 7 | $77,791 | — | — | — |
| C015 | City | 1,406 | 37 | $105,400 | — | — | — |
| C016 | City | 339 | 20 | $88,637 | — | — | — |
| C017 | City | 430 | 17 | $59,641 | — | — | — |
| C018 | City | 309 | 0 | $200,001+ | — | — | — |
| C019 | City | 365 | 1 | $59,641 | — | — | — |
| C020 | City | 829 | 28 | $102,604 | — | — | — |
| C025 | City | 465 | 132 | $107,921 | — | — | — |
| C026 | City | 438 | 10 | $59,641 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 20018 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 20712 — Mount Rainier city, MD (1.2 mi)
- 20017 — Washington city, DC (1.3 mi)
- 20722 — Colmar Manor town, MD (1.4 mi)
- 20064 — Washington city, DC (1.5 mi)
- 20002 — Washington city, DC (1.6 mi)
- 20422 — Washington city, DC (1.9 mi)
- 20317 — Washington city, DC (2.2 mi)
- 20781 — Hyattsville city, MD (2.4 mi)
Areas that include 20018
- Washington, DC ZIP codes — 57 ZIP codes
- District of Columbia County ZIP codes — 57 ZIP codes
- District of Columbia ZIP code data
Where it ranks
- No. 7 of 23: highest share of owner-occupied homes in District of Columbia
- No. 5 of 26: highest median age in District of Columbia
- No. 7 of 23: highest share of owner-occupied homes in Washington, DC
- No. 5 of 26: highest median age in Washington, DC
Mail every home in 20018
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
Washington EDDM mailing
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 20018, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 20018 in?
- 20018 is a Washington, DC mailing address. By land area, 100% lies inside Washington.
- What county is 20018 in?
- 20018 is in District of Columbia.
- What is the population of 20018?
- About 19,562 people (±1,547), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 20,646.
- What is the median household income in 20018?
- $90,639 (±$11,234), compared with $109,870 for District of Columbia as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 20018?
- 16 USPS carrier routes with 9,877 residential and 528 business mailboxes (10,406 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 20018?
- The closest, measured center to center: 20712 (1.2 mi, Mount Rainier), 20017 (1.3 mi, Washington), 20722 (1.4 mi, Colmar Manor), 20064 (1.5 mi, Washington), 20002 (1.6 mi, Washington) and 20422 (1.9 mi, Washington).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.