Zip Code 01581
Westborough, Massachusetts — Worcester County
📍 ZIP code 01581 is in Westborough, Worcester County, Massachusetts.
ZIP code 01581 is located in Westborough, Worcester County, Massachusetts. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 21,591. The area code for ZIP code 01581 is 508.
Quick Answer
Zip code 01581 is in Westborough, Massachusetts (Worcester County). It has a population of 21,591, median household income of $134,474, and median home value of $637,900.
Population
21,591
Income
$134,474
Home Value
$637,900
Climate
85°F / 17°F
About Zip Code 01581
Zip code 01581 is located in Westborough, Massachusetts, within Worcester County. Home to approximately 21,591 residents, this area sits at an elevation of 297 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 508.
The median household income is $134,474 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $637,900, and the cost of living index is 200 (100% above the national average of 100).
Summers average a high of 85°F while winters drop to 17°F. The area receives about 50 in of rain and 52 in of snow annually. The zip code covers 20.6 square miles of land area and 0.9 square miles of water.
Key Statistics
21,591
$134,474
$637,900
Eastern (EST/EDT)
508
297 ft
20.6 sq mi
39
8,407
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Compare With Nearby Zip Codes
| Metric | 01581 | 01532 | 01536 | 01748 | 01772 | 01545 |
|---|---|---|---|---|---|---|
| City | Westborough, MA | Northborough, MA | North Grafton, MA | Hopkinton, MA | Southborough, MA | Shrewsbury, MA |
| Population | 21,591 | 15,694 | 7,119 | 19,050 | 9,781 | 38,440 |
| Median Income | $134,474 | $174,358 | $105,795 | $204,418 | $196,680 | $136,225 |
| Home Value | $637,900 | $598,500 | $450,500 | $726,100 | $816,500 | $555,500 |
| Cost of Living | 200 | 203 | 147 | 250 | 250 | 177 |
| Median Age | 39 | 44.7 | 43.2 | 40.9 | 43.3 | 40.5 |
Cost of Living
100 = National Average. Westborough's cost of living is 100% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.7x
Demographics
Zip code 01581 has a population of 21,591 people with a median age of 39. There are 8,407 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Westborough (01581) population trend from 2010 to 2024
↑ 96.6%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
85°F
17°F
50 in
52 in
Westborough experiences warm summers with average highs around 85°F. Winters are cold with lows averaging 17°F. With 52 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$637,900
Median Household Income
$134,474
With 8,407 housing units across 20.6 square miles, 01581 has a housing density of 408 units per square mile. The home price-to-income ratio is 4.7x.
Location & Geography
Latitude
42.2684°
Longitude
-71.6133°
Land Area
20.6 sq mi
Water Area
0.9 sq mi
Nearby Zip Codes
Zip codes closest to 01581 (Westborough, MA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 01581's $134,474. A way to compare Westborough to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 01581 (Westborough, MA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Westborough, Massachusetts?
Westborough, Massachusetts uses zip code 01581.
What county is zip code 01581 in?
Zip code 01581 is located in Worcester County, Massachusetts.
What is the population of zip code 01581?
The population of zip code 01581 is 21,591 with a median age of 39.
Is 01581 in Westborough, Massachusetts?
Yes, zip code 01581 is in Westborough, Worcester County, Massachusetts. The area code is 508.
Frequently Asked Questions
What city is zip code 01581 in?
Zip code 01581 is in Westborough, Massachusetts. It is part of Worcester County and uses the Eastern (EST/EDT) timezone.
What is zip code 01581?
Zip code 01581 is a U.S. postal code in Westborough, Massachusetts (Worcester County). It has a population of 21,591 and covers 20.6 square miles.
What is the population of zip code 01581?
The population of zip code 01581 (Westborough, MA) is 21,591 with a median age of 39. There are approximately 8,407 housing units in this area.
What is the median income in zip code 01581?
The median household income in zip code 01581 (Westborough, MA) is $134,474 per year. The cost of living index is 200 (100 = national average).
What is the average home price in zip code 01581?
The median home value in zip code 01581 (Westborough, MA) is $637,900. The cost of living index is 200 compared to the national average of 100.
What county is zip code 01581 in?
Zip code 01581 is located in Worcester County, Massachusetts. The primary city is Westborough.
What is the area code for zip code 01581?
Zip code 01581 in Westborough, MA uses area code 508. It is located in the Eastern (EST/EDT) timezone.
Is zip code 01581 a good place to live?
Zip code 01581 (Westborough, MA) has a cost of living index of 200 (100 = national average), a median household income of $134,474, and median home values of $637,900. The median age is 39. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 01581?
The cost of living index for zip code 01581 (Westborough, MA) is 200, where 100 represents the national average. This area is above the national average. Median home value: $637,900.
What schools serve zip code 01581?
Zip code 01581 in Westborough, Massachusetts is served by the local school district of Worcester County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.