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US ZIP Code Profile

ZIP Code 19023
Darby, Pennsylvania

ZIP code 19023 is in Darby, located in Delaware County, Pennsylvania, within the Philadelphia-Camden-Wilmington metro area. Its 2020 Census population was 22,180. The estimated median adjusted gross income per tax return is $34,700, and about 0% of filers report $200,000 or more.

2020 Population
22,180
Census ZCTA
County
Delaware
FIPS 42045
Median income (est.)
$34,700
IRS SOI 2022
Land Area
1.997 mi²
+ 0 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityDarby, PA
CountyDelaware County (FIPS 42045)
StatePennsylvania (FIPS 42)
Metro Area (MSA)Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metro Area (37980)
Census Region / DivisionNortheast Region · Middle Atlantic Division
Coordinates39.91714, -75.26739
Land / Water Area1.997 mi² land · 0 mi² water

02Income & Economics

Distribution of the 9,860 individual tax returns filed in 19023 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
37.5%
$25K–$50K
32.1%
$50K–$75K
16.0%
$75K–$100K
7.9%
$100K–$200K
6.0%
$200K+
0.4%
The $200,000+ bracket accounts for 3% of 19023's total adjusted gross income, from 0% of returns — a concentration that drives the gap between the median ($34,700) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 19023's IRS income metrics, 2020–2022.

Median income (2021→2022)
$34,700
▲ 6.7%
Filers earning $200K+
0.4%
▲ 0.1 pt
Total filers
9,860
▼ 4.5%
GET /zipc/v2/zipcodes/19023/soi?year=… $32K 2020 $33K 2021 $35K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 19023 ZCTA.

2000
21,404
 
2010
22,164
▲ +3.6%
2020
22,180
▲ +0.1%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 19023. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 19023

Darby and its immediate neighbors, sorted by distance.

3 mi
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Distance from 19023 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number411904
City AliasesCollingdale, Colwyn, Darby

07Frequently Asked Questions

What county is ZIP code 19023 in?

ZIP code 19023 is in Delaware County, Pennsylvania (county FIPS code 42045).

What city is ZIP code 19023?

The primary USPS city for 19023 is Darby, PA.

What metro area (MSA) is 19023 in?

19023 is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metro Area (MSA code 37980).

What is the population of ZIP code 19023?

The 2020 Census population of 19023 was 22,180 residents.

What is the median income in ZIP code 19023?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 19023 is about $34,700, with around 0% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.