US ZIP Code
01431

Ashby, MA

Middlesex County  ·  Massachusetts

● Active
👥 3,188 Population
💰 $110,536 Median HH Income
▲ 45% above avg ↑ 13% since 2019
🎂 50.2 Median Age ↑ 9% since 2019
🏠 $362,200 Median Home Value
▲ 30% above avg ↑ 35% since 2019
🎓 53.6% College Grads
▲ 38% above avg
📊 3.7% Unemployment
▼ 24% below avg
ZIP Code Details
ZIP Code01431
CityAshby
StateMassachusetts (MA)
CountyMiddlesex County
Area Code351/978
Elevation935 ft
Latitude42.676293
Longitude-71.832523
TimezoneNew York (DST)
FIPS25017
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.4% (1,575) Female 50.6% (1,613) ♀

Race & Ethnicity

White: 94.2%Hispanic: 3.5%Asian: 0.4%Other: 1.9%Race
White94.2%
Hispanic3.5%
Asian0.4%
Other1.9%

Age Breakdown

Under 5
3%
5–17
13%
18–24
6%
25–44
21%
45–64
37%
65+
10%

Key Indicators

Median Age50.2 yrs ↑ 9% since 2019
Avg Household Size2.52
Below Poverty2.8% ▼ 72% below avg
College Grads53.6% ▲ 38% above avg
Unemployment3.7% ▼ 24% below avg
No HS Diploma13 (0.5%)
HS Graduate635 (26.6%)
Some College272 (11.4%)
Associates186 (7.8%)
Bachelors253 (10.6%)
Graduate Degree1,026 (43%)

Education

No HS: 0.5%HS Grad: 26.6%Some College: 11.4%Associates: 7.8%Bachelors: 10.6%Graduate: 43%Edu
No HS0.5%
HS Grad26.6%
Some College11.4%
Associates7.8%
Bachelors10.6%
Graduate43.0%
Housing & Income

Housing Tenure

Owner: 94.2%Renter: 5.8%Tenure
Owner94.2%
Renter5.8%

Home Value Distribution

Under $50k
2%
$50k–100k
1%
$100k–150k
0%
$150k–200k
6%
$200k–300k
27%
$300k–500k
43%
Over $500k
22%

Financials

Median HH Income$110,536 ▲ 45% above avg ↑ 13% since 2019
Median Home Value$362,200 ▲ 30% above avg ↑ 35% since 2019
Home/Income Ratio3.3x (nat avg ~3.5x)
Median Rent$969/mo ↓ 12% since 2019
Total Units1,308
Vacant Units44
Avg HH Size2.52

Income Distribution

Under $25k
6%
$25k–50k
10%
$50k–75k
14%
$75k–100k
9%
$100k–150k
32%
$150k–200k
12%
Over $200k
19%
Employment & Commute

How People Get to Work

Drove Alone
79%
Public Transit
0%
Walked
3%
Work From Home
18%

Commute Time

Under 15 min
16%
15–30 min
26%
30–45 min
23%
Over 45 min
35%
Housing Stock

Year Built

Before 1940
2%
1940s–1950s
9%
1960s–1970s
15%
1980s–1990s
14%
2000+
59%

Summary

Total Units1,308
Vacant44
Owner Occupied94.2%
Renter Occupied5.8%
Avg HH Size2.52
Frequently Asked Questions
ZIP code 01431 is in Ashby, MA, in Middlesex County.
ZIP code 01431 is located in Massachusetts (MA).
ZIP code 01431 is in Middlesex County, MA.
ZIP 01431 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 01431 is 3,188 people (ACS 2023).
The median household income in ZIP code 01431 is $110,536 (ACS 2023).
The median home value in ZIP 01431 is $362,200 (ACS 2023).
About ZIP Code 01431

ZIP code 01431 is located in Ashby, Massachusetts, within Middlesex County. With a population of 3,188, this is a sparsely populated ZIP code with a mature community — the median age is 50.2 years. Economically, 01431 is a upper-middle-income ZIP code: the median household income of $110,536 is above the national average.

Real estate in ZIP code 01431 represents a mid-range housing market. The median home value of $362,200 is above the national average. Renters can expect to pay around $969 per month in median rent. Homeownership is strong here — 94.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 35% since 2019.

The population of 01431 is primarily White (94.23%). Residents are well-educated — 53.6% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 2.8%. Household income has grown by 13% since 2019.

The unemployment rate in 01431 stands at 3.7%, which is below the national average. About 16% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 72%.

Overall, ZIP code 01431 in Ashby, MA is characterized as upper-middle-income, well-educated, a mature community, and predominantly owner-occupied. With 3,188 residents, a median household income of $110,536, and a median home value of $362,200, it offers a clear picture of life in this part of Massachusetts.