Residential delivery area · Massachusetts
ZIP Code 01886: Westford, MA
ZIP code 01886 uses the postal name Westford, Massachusetts and lies entirely in Middlesex County (Census 2020 ZIP-county file). About 25,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $187,198 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Westford · its only residential ZIP
- County
- Middlesex County
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House district
- MA-3 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 30.2 sq mi · 816 people per sq mi
Where is ZIP code 01886?
01886 centers on 42.586°, -71.440° and covers 30.2 square miles of land plus 1.1 of water. It borders 7 ZIP codes: 01863, 01460, 01824, 01741, 01879, 01450, 01720.
The map draws ZIP code areas only. For the streets inside 01886, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 01886 compare with the rest of Middlesex County?
| Measure | 01886 | In Middlesex County | In MA |
|---|---|---|---|
| People (ACS 2020-2024) | 24,690 | 29th of 83 | 97th of 539 |
| Median household income | $187k | 18th of 78 | 37th of 406 |
| Median home value | $749k | 42nd of 80 | 101st of 449 |
Its median household income is higher than in 99% of U.S. residential ZIP codes, and it is denser than 76% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 01886?
The 2020 Census counted 24,618 people in 01886; the ACS, which samples households over 2020-2024, estimates 24,690. Between the 2010 and 2020 censuses its population grew 12.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 24,690
- 2020 Census count
- 24,618+12.1% since 2010 (21,951)
- Households
- 8,795
- Median age
- 42.8
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 01886?
Of the 24,690 people the ACS estimates in 01886, 25.6% are under 18 and 14.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (70.1%), then Asian (not Hispanic) (21.7%).
- Under 1825.6%
- 18 to 6459.8%
- 65 and older14.6%
- White, not Hispanic70.1%
- Asian, not Hispanic21.7%
- Other or two or more4.4%
- Hispanic or Latino3.6%
- Black, not Hispanic0.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 01886 earn?
Median household income is $187,198 (ACS 2020-2024), the 18th highest of the 78 ranked ZIP codes in Middlesex County. It is not measurably different from 2015-2019 ($177,812 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $187,198
- Income per person
- $77,741
- Below the poverty line
- 3.2%
- Unemployed (of the labor force)
- 4.8%
- Adults 25+ with a bachelor's degree
- 73.9%
- Adjusted gross income per tax return, 2022
- $167,14912,410 returns; wages 77% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 01886?
FHFA's house price index for 01886, built from repeat sales and appraisals of the same homes, rose 79% from 2015 to 2025 and rose 49% from 2020 to 2025, and moved +3.1% in 2025.
- Median home value (owners' estimate)
- $748,500
- Median gross rent
- $2,436
- Homes owned by their occupants
- 85.9%
- Housing units
- 9,241
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 01886?
634 business establishments had a location in this ZIP code in 2023, 19 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services110
- Health care and social assistance77
- Construction68
- Other services (except public administration)64
- Accommodation and food services55
- Retail trade46
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 01886?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 01863 | North Chelmsford | 9,796 | $145k | 3.8 mi |
| 01460 | Littleton | 10,280 | $150k | 4.3 mi |
| 01824 | Chelmsford | 26,650 | $140k | 4.3 mi |
| 01741 | Carlisle | 5,239 | $250k+ | 5.2 mi |
| 01879 | Tyngsboro | 12,550 | $129k | 5.7 mi |
| 01450 | Groton | 11,356 | $193k | 6.6 mi |
| 01720 | Acton | 23,526 | $159k | 7.0 mi |
| 01718 | Acton | 404 | $104k | 4.4 mi (near) |
| 01851 | Lowell | 33,403 | $92k | 6.0 mi (near) |
| 01854 | Lowell | 30,081 | $73k | 6.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.