19901 ZIP Code, Dover, DE

19901 is a ZIP code in Dover, Delaware in Kent County. It covers 76 square miles of land. The closest ZIP codes are 19902, 19904 and 19936. 37,763 people live here in 13,951 households. With about 498 people per square mile it is lightly settled, and owners and renters are mixed (56% own). Median household income is $66,388, below the Delaware median of $84,954.

Quick facts

Key figures

MeasureValue
Residents37,763
Households13,951
Median household income$66,388
Income per person$33,487
Median age33.6
Homeowners55.5%
Median home value$273,000
Median rent$1,398
Bachelor's degree or higher26.9%
Average commute (minutes)21.6
Households with kids under 1831.5%
Moved in the past year15.8%
Below the poverty line14.2%
Broadband internet90.6%
Speak a non-English language at home10.2%

Household income

% of householdsValue
<$10K4.7%
$10–15K4.3%
$15–25K8.6%
$25–35K7.2%
$35–50K13.5%
$50–75K16.2%
$75–100K14.5%
$100–150K15.7%
$150–200K9.3%
$200K+6.1%

Age

% of all residentsValue
<1012.7%
10–1915.0%
20–2411.5%
25–3413.0%
35–4410.5%
45–549.9%
55–6410.1%
65–749.9%
75+7.2%

Tenure

% of housing unitsValue
Owned, with mortgage30.1%
Owned outright21.6%
Rented40.4%
Vacant7.9%

Type of building

% of housing unitsValue
Detached house49.2%
Townhome16.0%
2–4 units4.4%
5–19 units10.9%
20+ units6.3%
Mobile / other13.2%

Businesses in 19901

2,193 business establishments with 25,450 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

19901 has 24 USPS carrier routes with 15,350 residential and 1,404 business mailboxes. Open the EDDM route map.

Carrier routes in 19901

19901 has 24 USPS carrier routes (17 city (C), 7 rural (R)) with 15,350 residential and 1,404 business mailboxes. Routes range from 234 homes (C005) to 1,089 homes (C037); the median route has 589 homes. The Census counted 13,951 households in 19901 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4997
500–74911
750–9993
1,000–1,4992
1,500+0

Best routes in 19901 for…

Most businesses

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

  1. Route C035 — USPS business mailboxes 201, 328 homes
  2. Route C013 — USPS business mailboxes 157, 555 homes
  3. Route C005 — USPS business mailboxes 144, 234 homes
  4. Route R012 — USPS business mailboxes 140, 724 homes
  5. Route C027 — USPS business mailboxes 116, 736 homes

Select these 5 routes on the route map

Every carrier route in 19901

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City43273$79,042———
C005City234144$80,125———
C006City5675$73,100———
C009City9775$47,087———
C010City4854$80,125———
C012City36697$80,125———
C013City555157$54,206———
C015City45253$103,297———
C016City50721$82,414———
C020City93046$57,115———
C024City98932$82,414———
C026City4852$63,251———
C027City736116$73,100———
C032City46814$115,564———
C035City328201$66,951———
C037City1,0897$63,251———
C038City1,08761$28,928———
R003Rural71110$105,860———
R004Rural6557$100,940———
R006Rural6118$52,873———
R008Rural71981$105,948———
R012Rural724140$82,414———
R014Rural70112$66,951———
R020Rural542108$96,037———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 19901 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 19901

Where it ranks

Mail every home in 19901

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) 19901, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 19901 in?
19901 is a Dover, DE mailing address. By land area, 14% lies inside Dover, 2% lies inside Highland Acres, 1% lies inside Rising Sun-Lebanon and 1% lies inside Kent Acres; the rest is outside any Census-defined city or community.
What county is 19901 in?
19901 is in Kent County.
What is the population of 19901?
About 37,763 people (±1,950), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 36,839.
What is the median household income in 19901?
$66,388 (±$4,116), compared with $84,954 for Delaware as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 19901?
24 USPS carrier routes with 15,350 residential and 1,404 business mailboxes (16,754 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 19901?
The closest, measured center to center: 19902 (3.7 mi, Dover), 19904 (6.2 mi, Dover), 19936 (6.5 mi, Cheswold), 19962 (7.8 mi, Rising Sun-Lebanon), 19977 (9 mi, Smyrna) and 19980 (9.1 mi, Woodside).

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