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US ZIP Code Profile

ZIP Code 01731
Hanscom Afb, Massachusetts

ZIP code 01731 is in Hanscom Afb, located in Middlesex County, Massachusetts, within the Boston-Cambridge-Newton metro area. Its 2020 Census population was 1,555. The estimated median adjusted gross income per tax return is $67,969, and about 4% of filers report $200,000 or more.

2020 Population
1,555
Census ZCTA
County
Middlesex
FIPS 25017
Median income (est.)
$67,969
IRS SOI 2022
Land Area
0.792 mi²
+ 0 mi² water

01Location & Geography

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

Primary CityHanscom Afb, 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
Coordinates42.456753, -71.27948
Land / Water Area0.792 mi² land · 0 mi² water

02Income & Economics

Distribution of the 730 individual tax returns filed in 01731 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
12.3%
$25K–$50K
21.9%
$50K–$75K
21.9%
$75K–$100K
15.1%
$100K–$200K
24.7%
$200K+
4.1%
The $200,000+ bracket accounts for 13% of 01731's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($67,969) 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 01731's IRS income metrics, 2020–2022.

Median income (2021→2022)
$67,969
▲ 5.9%
Filers earning $200K+
4.1%
▲ 0.2 pt
Total filers
730
▼ 5.2%
GET /zipc/v2/zipcodes/01731/soi?year=… $62K 2020 $64K 2021 $68K 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 01731 ZCTA.

2000
2,933
 
2010
1,396
▼ -52.4%
2020
1,555
▲ +11.4%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 01731. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 01731

Hanscom Afb and its immediate neighbors, sorted by distance.

3 mi
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Distance from 01731 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeBranch
Carrier Route SortB
USPS Finance Number240561
City AliasesBedford, Hanscom Afb

07Frequently Asked Questions

What county is ZIP code 01731 in?

ZIP code 01731 is in Middlesex County, Massachusetts (county FIPS code 25017).

What city is ZIP code 01731?

The primary USPS city for 01731 is Hanscom Afb, MA.

What metro area (MSA) is 01731 in?

01731 is part of the Boston-Cambridge-Newton, MA-NH Metro Area (MSA code 14460).

What is the population of ZIP code 01731?

The 2020 Census population of 01731 was 1,555 residents.

What is the median income in ZIP code 01731?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 01731 is about $67,969, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.