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US ZIP Code Profile

ZIP Code 02370
Rockland, Massachusetts

ZIP code 02370 is in Rockland, located in Plymouth County, Massachusetts, within the Boston-Cambridge-Newton metro area. Its 2020 Census population was 17,803. The estimated median adjusted gross income per tax return is $57,452, and about 6% of filers report $200,000 or more.

2020 Population
17,803
Census ZCTA
County
Plymouth
FIPS 25023
Median income (est.)
$57,452
IRS SOI 2022
Land Area
10.309 mi²
+ 0.092 mi² water

01Location & Geography

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

Primary CityRockland, MA
CountyPlymouth County (FIPS 25023)
StateMassachusetts (FIPS 25)
Metro Area (MSA)Boston-Cambridge-Newton, MA-NH Metro Area (14460)
Census Region / DivisionNortheast Region · New England Division
Coordinates42.130398, -70.910614
Land / Water Area10.309 mi² land · 0.092 mi² water

02Income & Economics

Distribution of the 9,510 individual tax returns filed in 02370 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
25.3%
$25K–$50K
19.8%
$50K–$75K
16.4%
$75K–$100K
11.4%
$100K–$200K
21.6%
$200K+
5.6%
The $200,000+ bracket accounts for 22% of 02370's total adjusted gross income, from 6% of returns — a concentration that drives the gap between the median ($57,452) 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 02370's IRS income metrics, 2020–2022.

Median income (2021→2022)
$57,452
▲ 6.7%
Filers earning $200K+
5.6%
▲ 0.9 pt
Total filers
9,510
▲ 0.1%
GET /zipc/v2/zipcodes/02370/soi?year=… $50K 2020 $54K 2021 $57K 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 02370 ZCTA.

2000
17,670
 
2010
17,489
▼ -1.0%
2020
17,803
▲ +1.8%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 02370. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 02370

Rockland and its immediate neighbors, sorted by distance.

3 mi
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Distance from 02370 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number246511
City AliasesRockland

07Frequently Asked Questions

What county is ZIP code 02370 in?

ZIP code 02370 is in Plymouth County, Massachusetts (county FIPS code 25023).

What city is ZIP code 02370?

The primary USPS city for 02370 is Rockland, MA.

What metro area (MSA) is 02370 in?

02370 is part of the Boston-Cambridge-Newton, MA-NH Metro Area (MSA code 14460).

What is the population of ZIP code 02370?

The 2020 Census population of 02370 was 17,803 residents.

What is the median income in ZIP code 02370?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 02370 is about $57,452, with around 6% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.