PlainZIP

Ashby, MA · standard

ZIP Code 01431

Middlesex County, Massachusetts - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

3,074
50/sq mi
$115,598
Median income
$390,500
Median home value
43.7%
Bachelor's or higher

The verdict

Ashby pairs an upper-quartile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 11%
household income, US ZIPs
Top 22%
home value, US ZIPs
50
people per sq mi
96%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 01431 against every reporting US ZIP.

ZIP code 01431 covers 61.2 square miles in Ashby, Middlesex County, Massachusetts (a standard USPS delivery area), with a modest 3,074 residents on file, a density of 50 people per square mile, in the New York time zone.

ZIP 01431 skews affluent, with a median household income of $115,598 (0% below the Massachusetts average), while per-capita income is $57,840. Local economic indicators show a 2.6% poverty rate alongside 4.5% unemployment. The typical home here is valued at $390,500 (35% below the state average); renters pay a median of $1,200 monthly, and 95.5% of units are owner-occupied.

A solid share of residents have a four-year degree: 43.7% of adults hold a bachelor's degree or higher, the median age is 50.5, and the average commute is 33 minutes. We also surface 9 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Middlesex County, so you can benchmark 01431 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 01431

Top 5 sectors by establishment count in Ashby, MA

Which industries have the most business establishments in ZIP 01431.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 01431, Ashby, MA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

3,074

Population

61.2

Area (sq mi)

50

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 01431?

50.5

Median Age

49.1%

Male

50.9%

Female

3.9%

Foreign-Born

White 93.2%
African American 0.2%
Asian 0.2%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 5.3%
Hispanic or Latino 4.7%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$115,598

Median Household Income

-0% vs state

$57,840

Per Capita Income

2.6%

Poverty Rate

4.5%

Unemployment Rate

32.9 min

Mean Commute Time

How ZIP 01431 ranks nationally

Ashby, MA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$115,598 Top 11% higher than 89% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 67.2%
Bachelor's Degree or Higher 43.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,321

Total Housing Units

1,261

Occupied Units

60

Vacant Units

2.54

Avg Household Size

Occupancy Type

Owner 95.5%
Renter 4.5%

$390,500

Median Home Value

-35% vs state

$1,200

Median Rent

1970

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+0.1%

YoY Change (2024)

215

HPI Index (2000 = 100)

+115%

Total Change Since 2000

Home values in ZIP 01431 have increased 0.1% over the past year (2024). Since 2000, this ZIP has seen +115% cumulative appreciation.

Year Annual Change HPI Index
2020 +6.5% 158
2021 +11.7% 177
2022 +16.9% 207
2023 +4.0% 215
2024 +0.1% 215

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 60 business establishments in ZIP 01431, employing approximately 224 people with a combined annual payroll of $14,189,000.

60

Businesses

224

Employees

$14.2M

Annual Payroll

7

Industry Sectors

Industry Establishments % of Total
Construction 19 31.7%
Administrative and support and waste management and remediation services 7 11.7%
Other services (except public administration) 7 11.7%
Manufacturing 5 8.3%
Professional, scientific, and technical services 5 8.3%
Retail trade 4 6.7%
Accommodation and food services 3 5.0%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 01431 vs 01474 →

ZIP 01431 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 01431 ranks #9 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 01431 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 01431 ranks #3 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
01474 West Townsend, MA 2,125 3.7 mi
01420 Fitchburg, MA 40,337 6.3 mi
01430 Ashburnham, MA 6,089 5.2 mi
03071 New Ipswich, NH 5,109 5.6 mi
03048 Greenville, NH 3,426 5.9 mi
01469 Townsend, MA 6,801 6.6 mi
01462 Lunenburg, MA 10,086 8.0 mi
01473 Westminster, MA 7,277 9.6 mi
03055 Milford, NH 15,086 12.4 mi

More ZIP Codes in Middlesex County

02148 standard
Malden, MA
Pop: 59,503
02155 standard
Medford, MA
Pop: 57,964
02149 standard
Everett, MA
Pop: 41,550
01801 standard
Woburn, MA
Pop: 38,903
01752 standard
Marlborough, MA
Pop: 38,499
01702 standard
Framingham, MA
Pop: 37,206

Related Areas

Middlesex County Ashby, MA Massachusetts

Frequently Asked Questions

What county is ZIP code 01431 in? ▼
ZIP code 01431 (Ashby) is located in Middlesex County, Massachusetts. Middlesex County contains multiple ZIP codes, see the full list at /counties/middlesex-ma.
What is the population of ZIP code 01431? ▼
ZIP code 01431 in Ashby, MA has a population of 3,074 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 01431? ▼
The median household income in ZIP 01431 is $115,598, which is 52% above the national average of $76,288.
What is the average home value in ZIP 01431? ▼
The median home value in ZIP 01431 is $390,500, which is 40% above the national average of $278,155.
What is the demographic makeup of ZIP 01431? ▼
The largest racial group in ZIP 01431 is White at 93.2%. Hispanic or Latino residents make up 4.7% of the population.
How many businesses are in ZIP code 01431? ▼
ZIP code 01431 has 60 business establishments employing approximately 224 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 01431? ▼
The top industries by establishment count in ZIP 01431 are: Construction (19), Administrative and support and waste management and remediation services (7), Other services (except public administration) (7). There are 7 industry sectors represented in total.
How have home values changed in ZIP code 01431? ▼
According to the FHFA House Price Index, home values in ZIP 01431 increased by 0.1% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 115%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 01431? ▼
In ZIP code 01431, 67.2% of residents aged 25+ have a high school diploma or higher, and 43.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 01431? ▼
The mean commute time for workers in ZIP code 01431 is 32.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 01431? ▼
In ZIP code 01431, approximately 95.5% of occupied housing units are owner-occupied and 4.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 01431? ▼
The poverty rate in ZIP code 01431 is 2.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.