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US ZIP Code Profile

ZIP Code 02186
Milton, Massachusetts

ZIP code 02186 is in Milton, located in Norfolk County, Massachusetts, within the Boston-Cambridge-Newton metro area. Its 2020 Census population was 28,637. The estimated median adjusted gross income per tax return is $98,230, and about 29% of filers report $200,000 or more.

2020 Population
28,637
Census ZCTA
County
Norfolk
FIPS 25021
Median income (est.)
$98,230
IRS SOI 2022
Land Area
13.016 mi²
+ 0.298 mi² water

01Location & Geography

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

Primary CityMilton, MA
CountyNorfolk County (FIPS 25021)
StateMassachusetts (FIPS 25)
Metro Area (MSA)Boston-Cambridge-Newton, MA-NH Metro Area (14460)
Census Region / DivisionNortheast Region · New England Division
Coordinates42.241558, -71.082436
Land / Water Area13.016 mi² land · 0.298 mi² water

02Income & Economics

Distribution of the 13,300 individual tax returns filed in 02186 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
20.2%
$25K–$50K
11.1%
$50K–$75K
10.9%
$75K–$100K
8.5%
$100K–$200K
20.7%
$200K+
28.7%
The $200,000+ bracket accounts for 77% of 02186's total adjusted gross income, from 29% of returns — a concentration that drives the gap between the median ($98,230) 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 02186's IRS income metrics, 2020–2022.

Median income (2021→2022)
$98,230
▲ 4.0%
Filers earning $200K+
28.7%
▲ 1.5 pt
Total filers
13,300
▲ 0.7%
GET /zipc/v2/zipcodes/02186/soi?year=… $84K 2020 $94K 2021 $98K 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 02186 ZCTA.

2000
26,062
 
2010
27,003
▲ +3.6%
2020
28,637
▲ +6.1%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 02186. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 02186

Milton and its immediate neighbors, sorted by distance.

3 mi
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Distance from 02186 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 TypeBranch
Carrier Route SortB
USPS Finance Number240041
City AliasesEast Milton, Milton

07Frequently Asked Questions

What county is ZIP code 02186 in?

ZIP code 02186 is in Norfolk County, Massachusetts (county FIPS code 25021).

What city is ZIP code 02186?

The primary USPS city for 02186 is Milton, MA.

What metro area (MSA) is 02186 in?

02186 is part of the Boston-Cambridge-Newton, MA-NH Metro Area (MSA code 14460).

What is the population of ZIP code 02186?

The 2020 Census population of 02186 was 28,637 residents.

What is the median income in ZIP code 02186?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 02186 is about $98,230, with around 29% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.