What city is 20770 in?

20770 is a Greenbelt, MD mailing address. By land area, 77% lies inside Greenbelt and 4% lies inside Seabrook; the rest is outside any Census-defined city or community.

What county is 20770 in?

20770 is in Prince George's County.

What is the population of 20770?

About 28,384 people (±766), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 28,612.

What is the median household income in 20770?

$84,096 (±$9,450), compared with $103,678 for Maryland as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 20770?

16 USPS carrier routes with 12,158 residential and 825 business mailboxes (12,984 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 20770?

The closest, measured center to center: 20771 (1.9 mi), 20740 (2.2 mi, College Park), 20737 (2.9 mi, Riverdale Park), 20742 (2.9 mi, College Park), 20706 (3.1 mi, Lanham) and 20705 (3.3 mi, Beltsville).

20770 ZIP Code, Greenbelt, MD

20770 is a ZIP code in Greenbelt, Maryland in Prince George's County. It covers 7.3 square miles of land. The closest ZIP codes are 20771, 20740 and 20737. 28,384 people live here in 11,829 households. At about 3,884 people per square mile it has suburban density, and owners and renters are mixed (45% own). Median household income is $84,096, below the Maryland median of $103,678.

Quick facts

Mailing city: Greenbelt, MD
County: Prince George's County
Land area: 7.3 sq mi
Population: 28,384
Median household income: $84,096
Carrier routes: 16 (12,158 homes)

Key figures

Measure	Value
Residents	28,384
Households	11,829
Median household income	$84,096
Income per person	$45,507
Median age	34.2
Homeowners	44.9%
Median home value	$255,200
Median rent	$1,845
Bachelor's degree or higher	42.0%
Average commute (minutes)	33.9
Households with kids under 18	29.2%
Moved in the past year	17.6%
Below the poverty line	18.2%
Broadband internet	95.1%
Speak a non-English language at home	32.4%

Household income

% of households	Value
<$10K	7.8%
$10–15K	4.2%
$15–25K	6.6%
$25–35K	4.7%
$35–50K	7.5%
$50–75K	15.1%
$75–100K	11.5%
$100–150K	22.1%
$150–200K	7.9%
$200K+	12.6%

Age

% of all residents	Value
<10	14.0%
10–19	13.3%
20–24	5.2%
25–34	18.8%
35–44	12.5%
45–54	10.4%
55–64	12.0%
65–74	10.4%
75+	3.2%

Tenure

% of housing units	Value
Owned, with mortgage	30.0%
Owned outright	12.2%
Rented	51.4%
Vacant	6.4%

Type of building

% of housing units	Value
Detached house	9.5%
Townhome	25.6%
2–4 units	2.9%
5–19 units	55.1%
20+ units	6.9%
Mobile / other	0.0%

Businesses in 20770

709 business establishments with 14,127 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 188
Professional, Scientific, and Technical Services: 154
Retail Trade: 80
Accommodation and Food Services: 61
Other Services (except Public Administration): 55
Finance and Insurance: 42
Administrative and Support and Waste Management and Remediation Services: 30
Real Estate and Rental and Leasing: 28

EDDM carrier routes

20770 has 16 USPS carrier routes with 12,158 residential and 825 business mailboxes. Open the EDDM route map.

Carrier routes in 20770

20770 has 16 USPS carrier routes (16 city (C)) with 12,158 residential and 825 business mailboxes. Routes range from 383 homes (C003) to 1,097 homes (C012); the median route has 739 homes. The Census counted 11,829 households in 20770 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	2
500–749	6
750–999	4
1,000–1,499	4
1,500+	0

Best routes in 20770 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C009 — USPS business mailboxes 203, 619 homes
Route C014 — USPS business mailboxes 177, 661 homes
Route C023 — USPS business mailboxes 135, 809 homes
Route C024 — USPS business mailboxes 133, 386 homes
Route C008 — USPS business mailboxes 52, 1,014 homes

Select these 5 routes on the route map

Every carrier route in 20770

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	1,039	1	$73,783	—	—	—
C002	City	650	8	$110,344	—	—	—
C003	City	383	4	$61,985	—	—	—
C004	City	532	2	$68,660	—	—	—
C005	City	786	0	$152,469	—	—	—
C006	City	1,046	26	$100,363	—	—	—
C008	City	1,014	52	$70,754	—	—	—
C009	City	619	203	$100,363	—	—	—
C012	City	1,097	15	$58,102	—	—	—
C014	City	661	177	$71,436	—	—	—
C017	City	691	37	$79,168	—	—	—
C021	City	875	2	$71,482	—	—	—
C023	City	809	135	$109,110	—	—	—
C024	City	386	133	$107,568	—	—	—
C028	City	938	2	$52,086	—	—	—
C029	City	632	28	$52,086	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 20770 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

20771 (1.9 mi)
20740 — College Park city, MD (2.2 mi)
20737 — Riverdale Park town, MD (2.9 mi)
20742 — College Park city, MD (2.9 mi)
20706 — Lanham CDP, MD (3.1 mi)
20705 — Beltsville CDP, MD (3.3 mi)
20784 — New Carrollton city, MD (3.4 mi)
20783 — Adelphi CDP, MD (4.2 mi)

Areas that include 20770

Greenbelt, MD ZIP codes — 2 ZIP codes
Prince George's County ZIP codes — 38 ZIP codes
Maryland ZIP code data

Where it ranks

Mail every home in 20770

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.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 20770, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 20770 in?: 20770 is a Greenbelt, MD mailing address. By land area, 77% lies inside Greenbelt and 4% lies inside Seabrook; the rest is outside any Census-defined city or community.
What county is 20770 in?: 20770 is in Prince George's County.
What is the population of 20770?: About 28,384 people (±766), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 28,612.
What is the median household income in 20770?: $84,096 (±$9,450), compared with $103,678 for Maryland as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 20770?: 16 USPS carrier routes with 12,158 residential and 825 business mailboxes (12,984 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 20770?: The closest, measured center to center: 20771 (1.9 mi), 20740 (2.2 mi, College Park), 20737 (2.9 mi, Riverdale Park), 20742 (2.9 mi, College Park), 20706 (3.1 mi, Lanham) and 20705 (3.3 mi, Beltsville).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.