21114 ZIP Code, Crofton, MD

21114 is a ZIP code in Crofton, Maryland in Anne Arundel County. It covers 5.8 square miles of land. The closest ZIP codes are 20715, 21054 and 21113. 25,590 people live here in 9,350 households. At about 4,428 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (81%). Median household income is $141,344, above the Maryland median of $103,678; 42% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents25,590
Households9,350
Median household income$141,344
Income per person$60,803
Median age36.4
Homeowners80.8%
Median home value$490,400
Median rent$2,183
Bachelor's degree or higher63.0%
Average commute (minutes)33.8
Households with kids under 1842.2%
Moved in the past year14.9%
Below the poverty line3.2%
Broadband internet97.7%
Speak a non-English language at home12.3%

Household income

% of householdsValue
<$10K2.9%
$10–15K0.6%
$15–25K1.1%
$25–35K2.3%
$35–50K6.0%
$50–75K6.2%
$75–100K13.8%
$100–150K20.7%
$150–200K18.3%
$200K+28.1%

Age

% of all residentsValue
<1015.5%
10–1915.2%
20–244.4%
25–3413.3%
35–4415.0%
45–5413.5%
55–6410.8%
65–748.0%
75+4.4%

Tenure

% of housing unitsValue
Owned, with mortgage62.8%
Owned outright15.5%
Rented18.5%
Vacant3.3%

Type of building

% of housing unitsValue
Detached house42.2%
Townhome48.4%
2–4 units0.3%
5–19 units5.6%
20+ units3.3%
Mobile / other0.2%

Businesses in 21114

558 business establishments with 8,899 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

21114 has 18 USPS carrier routes with 9,951 residential and 571 business mailboxes. Open the EDDM route map.

Carrier routes in 21114

21114 has 18 USPS carrier routes (18 city (C)) with 9,951 residential and 571 business mailboxes. Routes range from 255 homes (C003) to 891 homes (C016); the median route has 560 homes. The Census counted 9,350 households in 21114 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4998
500–7496
750–9994
1,000–1,4990
1,500+0

Best routes in 21114 for…

Most businesses

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

  1. Route C019 — USPS business mailboxes 323, 268 homes
  2. Route C017 — USPS business mailboxes 91, 519 homes
  3. Route C016 — USPS business mailboxes 45, 891 homes
  4. Route C003 — USPS business mailboxes 42, 255 homes
  5. Route C021 — USPS business mailboxes 37, 750 homes

Select these 5 routes on the route map

Every carrier route in 21114

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City41622$138,779———
C002City4651$138,779———
C003City25542$138,779———
C005City4032$152,216———
C006City6630$145,270———
C007City4070$98,422———
C009City7621$70,329———
C010City7842$175,647———
C011City6010$175,647———
C013City6472$108,183———
C015City4690$182,860———
C016City89145$98,422———
C017City51991$98,422———
C018City6110$200,001+———
C019City268323$175,301———
C020City6012$175,647———
C021City75037$98,422———
C022City4391$152,216———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 21114 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

Areas that include 21114

Where it ranks

Mail every home in 21114

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) 21114, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 21114 in?
21114 is a Crofton, MD mailing address. By land area, 95% lies inside Crofton; the rest is outside any Census-defined city or community.
What county is 21114 in?
21114 is in Anne Arundel County.
What is the population of 21114?
About 25,590 people (±1,427), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 26,404.
What is the median household income in 21114?
$141,344 (±$8,848), 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 21114?
18 USPS carrier routes with 9,951 residential and 571 business mailboxes (10,522 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 21114?
The closest, measured center to center: 20715 (3.2 mi, Bowie), 21054 (3.2 mi, Odenton), 21113 (4 mi, Odenton), 21032 (4.5 mi, Crownsville), 20720 (5.4 mi, Fairwood) and 21035 (5.8 mi, Riva).

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