Get API Key →
US ZIP Code Profile

ZIP Code 01890
Winchester, Massachusetts

ZIP code 01890 is in Winchester, located in Middlesex County, Massachusetts, within the Boston-Cambridge-Newton metro area. Its 2020 Census population was 22,970. The estimated median adjusted gross income per tax return is $146,089, and about 41% of filers report $200,000 or more.

2020 Population
22,970
Census ZCTA
County
Middlesex
FIPS 25017
Median income (est.)
$146,089
IRS SOI 2022
Land Area
6.032 mi²
+ 0.316 mi² water

01Location & Geography

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

Primary CityWinchester, MA
CountyMiddlesex County (FIPS 25017)
StateMassachusetts (FIPS 25)
Metro Area (MSA)Boston-Cambridge-Newton, MA-NH Metro Area (14460)
Census Region / DivisionNortheast Region · New England Division
Coordinates42.45275, -71.14432
Land / Water Area6.032 mi² land · 0.316 mi² water

02Income & Economics

Distribution of the 10,690 individual tax returns filed in 01890 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
20.1%
$25K–$50K
8.4%
$50K–$75K
7.8%
$75K–$100K
6.0%
$100K–$200K
16.7%
$200K+
41.0%
The $200,000+ bracket accounts for 88% of 01890's total adjusted gross income, from 41% of returns — a concentration that drives the gap between the median ($146,089) 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 01890's IRS income metrics, 2020–2022.

Median income (2021→2022)
$146,089
▲ 2.0%
Filers earning $200K+
41.0%
▲ 0.5 pt
Total filers
10,690
▲ 0.9%
GET /zipc/v2/zipcodes/01890/soi?year=… $126K 2020 $143K 2021 $146K 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 01890 ZCTA.

2000
20,810
 
2010
21,382
▲ +2.7%
2020
22,970
▲ +7.4%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 01890. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 01890

Winchester and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 01890 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 SortB
USPS Finance Number249554
City AliasesWinchester

07Frequently Asked Questions

What county is ZIP code 01890 in?

ZIP code 01890 is in Middlesex County, Massachusetts (county FIPS code 25017).

What city is ZIP code 01890?

The primary USPS city for 01890 is Winchester, MA.

What metro area (MSA) is 01890 in?

01890 is part of the Boston-Cambridge-Newton, MA-NH Metro Area (MSA code 14460).

What is the population of ZIP code 01890?

The 2020 Census population of 01890 was 22,970 residents.

What is the median income in ZIP code 01890?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 01890 is about $146,089, with around 41% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.