What city is 18901 in?

18901 is a Doylestown, PA mailing address. By land area, 10% lies inside Doylestown and 5% lies inside New Britain; the rest is outside any Census-defined city or community.

What is the population of 18901?

About 28,509 people (±514), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 28,395.

What is the median household income in 18901?

$118,256 (±$9,305), compared with $77,971 for Pennsylvania as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 18901?

25 USPS carrier routes with 12,414 residential and 1,316 business mailboxes (13,728 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 18901?

The closest, measured center to center: 18914 (3.3 mi, Chalfont borough, PA), 18923 (3.5 mi), 18976 (3.9 mi), 18902 (4.4 mi, Plumsteadville), 18912 (4.6 mi) and 18925 (4.9 mi).

18901 ZIP Code, Doylestown, PA

18901 is a ZIP code in Doylestown, Pennsylvania in Bucks County. It covers 21 square miles of land. The closest ZIP codes are 18914, 18923 and 18976. 28,509 people live here in 11,336 households, more than in 9 of every 10 Pennsylvania ZIP codes. At about 1,359 people per square mile it has suburban density, and owners and renters are mixed (68% own). Median household income is $118,256, well above the Pennsylvania median of $77,971; the median age is 46.9, older than most ZIP codes.

Quick facts

Mailing city: Doylestown, PA
County: Bucks County
Land area: 21 sq mi
Population: 28,509
Median household income: $118,256
Carrier routes: 25 (12,414 homes)

Key figures

Measure	Value
Residents	28,509
Households	11,336
Median household income	$118,256
Income per person	$64,006
Median age	46.9
Homeowners	67.5%
Median home value	$576,800
Median rent	$1,917
Bachelor's degree or higher	58.7%
Average commute (minutes)	24.4
Households with kids under 18	29.3%
Moved in the past year	14.6%
Below the poverty line	4.7%
Broadband internet	94.1%
Speak a non-English language at home	7.8%

Household income

% of households	Value
<$10K	3.2%
$10–15K	1.8%
$15–25K	3.7%
$25–35K	3.0%
$35–50K	9.1%
$50–75K	10.9%
$75–100K	11.1%
$100–150K	17.4%
$150–200K	10.0%
$200K+	29.8%

Age

% of all residents	Value
<10	8.3%
10–19	13.8%
20–24	6.0%
25–34	10.5%
35–44	9.1%
45–54	14.2%
55–64	14.1%
65–74	11.7%
75+	12.2%

Tenure

% of housing units	Value
Owned, with mortgage	45.0%
Owned outright	21.0%
Rented	30.4%
Vacant	3.6%

Type of building

% of housing units	Value
Detached house	51.5%
Townhome	21.4%
2–4 units	6.8%
5–19 units	8.4%
20+ units	10.3%
Mobile / other	1.6%

Businesses in 18901

1,347 business establishments with 19,316 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 253
Health Care and Social Assistance: 198
Retail Trade: 146
Other Services (except Public Administration): 130
Finance and Insurance: 112
Construction: 102
Accommodation and Food Services: 89
Administrative and Support and Waste Management and Remediation Services: 78

EDDM carrier routes

18901 has 25 USPS carrier routes with 12,414 residential and 1,316 business mailboxes. Open the EDDM route map.

Carrier routes in 18901

18901 has 25 USPS carrier routes (18 city (C), 5 rural (R), 2 highway contract (H)) with 12,414 residential and 1,316 business mailboxes. Routes range from 81 homes (H001) to 1,071 homes (C004); the median route has 486 homes. The Census counted 11,336 households in 18901 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	2
250–499	13
500–749	7
750–999	2
1,000–1,499	1
1,500+	0

Best routes in 18901 for…

Most businesses

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

Route C025 — USPS business mailboxes 150, 437 homes
Route C027 — USPS business mailboxes 149, 293 homes
Route C008 — USPS business mailboxes 141, 325 homes
Route C021 — USPS business mailboxes 93, 595 homes
Route R007 — USPS business mailboxes 90, 513 homes

Select these 5 routes on the route map

Every carrier route in 18901

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C002	City	467	27	$109,767	—	—	—
C004	City	1,071	86	$99,912	—	—	—
C005	City	486	7	$60,849	—	—	—
C007	City	390	35	$165,403	—	—	—
C008	City	325	141	$96,771	—	—	—
C010	City	646	5	$99,912	—	—	—
C011	City	525	43	$96,771	—	—	—
C013	City	495	30	$127,220	—	—	—
C014	City	753	86	$152,257	—	—	—
C015	City	585	23	$127,220	—	—	—
C016	City	476	79	$127,814	—	—	—
C017	City	466	51	$127,814	—	—	—
C018	City	498	71	$127,220	—	—	—
C019	City	536	39	$200,001+	—	—	—
C020	City	470	1	$191,464	—	—	—
C021	City	595	93	$60,849	—	—	—
C025	City	437	150	$127,149	—	—	—
C027	City	293	149	$96,771	—	—	—
H001	Highway contract	81	7	$175,001	—	—	—
H002	Highway contract	118	14	$109,767	—	—	—
R003	Rural	481	58	$200,001+	—	—	—
R007	Rural	513	90	$120,648	—	—	—
R011	Rural	354	14	$144,135	—	—	—
R012	Rural	757	3	$120,648	—	—	—
R019	Rural	596	14	$144,135	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 18901 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

18914 — Chalfont borough, PA (3.3 mi)
18923 (3.5 mi)
18976 (3.9 mi)
18902 — Plumsteadville CDP, PA (4.4 mi)
18912 (4.6 mi)
18925 (4.9 mi)
18927 (4.9 mi)
18929 (5 mi)

Areas that include 18901

Where it ranks

Mail every home in 18901

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) 18901, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 18901 in?: 18901 is a Doylestown, PA mailing address. By land area, 10% lies inside Doylestown and 5% lies inside New Britain; the rest is outside any Census-defined city or community.
What county is 18901 in?: 18901 is in Bucks County.
What is the population of 18901?: About 28,509 people (±514), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 28,395.
What is the median household income in 18901?: $118,256 (±$9,305), compared with $77,971 for Pennsylvania as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 18901?: 25 USPS carrier routes with 12,414 residential and 1,316 business mailboxes (13,728 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 18901?: The closest, measured center to center: 18914 (3.3 mi, Chalfont borough, PA), 18923 (3.5 mi), 18976 (3.9 mi), 18902 (4.4 mi, Plumsteadville), 18912 (4.6 mi) and 18925 (4.9 mi).

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