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US ZIP Code Profile

ZIP Code 04102
Portland, Maine

ZIP code 04102 is in Portland, located in Cumberland County, Maine, within the Portland-South Portland metro area. Its 2020 Census population was 18,002. The estimated median adjusted gross income per tax return is $53,289, and about 8% of filers report $200,000 or more.

2020 Population
18,002
Census ZCTA
County
Cumberland
FIPS 23005
Median income (est.)
$53,289
IRS SOI 2022
Land Area
5.977 mi²
+ 0.532 mi² water

01Location & Geography

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

Primary CityPortland, ME
CountyCumberland County (FIPS 23005)
StateMaine (FIPS 23)
Metro Area (MSA)Portland-South Portland, ME Metro Area (38860)
Census Region / DivisionNortheast Region · New England Division
Coordinates43.654354, -70.29761
Land / Water Area5.977 mi² land · 0.532 mi² water

02Income & Economics

Distribution of the 9,430 individual tax returns filed in 04102 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
21.9%
$25K–$50K
25.8%
$50K–$75K
18.1%
$75K–$100K
10.4%
$100K–$200K
15.6%
$200K+
8.3%
The $200,000+ bracket accounts for 39% of 04102's total adjusted gross income, from 8% of returns — a concentration that drives the gap between the median ($53,289) 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 04102's IRS income metrics, 2020–2022.

Median income (2021→2022)
$53,289
▲ 11.2%
Filers earning $200K+
8.3%
▲ 0.6 pt
Total filers
9,430
▼ 1.8%
GET /zipc/v2/zipcodes/04102/soi?year=… $44K 2020 $48K 2021 $53K 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 04102 ZCTA.

2000
16,656
 
2010
17,335
▲ +4.1%
2020
18,002
▲ +3.8%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 04102. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 04102

Portland and its immediate neighbors, sorted by distance.

3 mi
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Distance from 04102 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 Number226900
City AliasesPortland

07Frequently Asked Questions

What county is ZIP code 04102 in?

ZIP code 04102 is in Cumberland County, Maine (county FIPS code 23005).

What city is ZIP code 04102?

The primary USPS city for 04102 is Portland, ME.

What metro area (MSA) is 04102 in?

04102 is part of the Portland-South Portland, ME Metro Area (MSA code 38860).

What is the population of ZIP code 04102?

The 2020 Census population of 04102 was 18,002 residents.

What is the median income in ZIP code 04102?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 04102 is about $53,289, with around 8% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.