Residential delivery area · Massachusetts
ZIP Code 01085: Westfield, MA
ZIP code 01085 is in Westfield, Massachusetts, entirely in Hampden County (Census 2020 ZIP-county file). About 41,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $88,728 (Census Bureau, ACS 2020-2024). By Census place, 77% of its land lies in Westfield; 23% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Westfield · its only residential ZIP
- County
- Hampden County
- Census places
- Westfield
- Metro area
- Springfield, MA
- House district
- MA-1 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 59.7 sq mi · 688 people per sq mi
- PO Box ZIPs
- 01086 also use the name Westfield
Where is ZIP code 01085?
01085 centers on 42.154°, -72.772° and covers 59.7 square miles of land plus 1.1 of water. It borders 9 ZIP codes: 01097, 01071, 01073, 01089, 01077, 01030, 01040, 01034, 01050.
The map draws ZIP code areas only. For the streets inside 01085, 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 01085 compare with the rest of Hampden County?
| Measure | 01085 | In Hampden County | In MA |
|---|---|---|---|
| People (ACS 2020-2024) | 41,102 | 1st of 40 | 25th of 539 |
| Median household income | $89k | 16th of 34 | 302nd of 406 |
| Median home value | $326k | 12th of 36 | 403rd of 449 |
Its median household income is higher than in 72% of U.S. residential ZIP codes, and it is denser than 75% 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 01085?
The 2020 Census counted 41,529 people in 01085; the ACS, which samples households over 2020-2024, estimates 41,102. Between the 2010 and 2020 censuses its population grew 1.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 41,102
- 2020 Census count
- 41,529+1.0% since 2010 (41,117)
- Households
- 16,112
- Median age
- 40.1
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 01085?
Of the 41,102 people the ACS estimates in 01085, 18.2% are under 18 and 18.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (83.5%).
- Under 1818.2%
- 18 to 6463.0%
- 65 and older18.7%
- White, not Hispanic83.5%
- Hispanic or Latino9.3%
- Other or two or more3.5%
- Asian, not Hispanic3.0%
- Black, not Hispanic0.7%
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 01085 earn?
Median household income is $88,728 (ACS 2020-2024), the 16th highest of the 34 ranked ZIP codes in Hampden County. It is not measurably different from 2015-2019 ($83,487 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $88,728
- Income per person
- $42,122
- Below the poverty line
- 10.5%
- Unemployed (of the labor force)
- 3.0%
- Adults 25+ with a bachelor's degree
- 33.3%
- Adjusted gross income per tax return, 2022
- $78,27019,600 returns; wages 70% 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 01085?
FHFA's house price index for 01085, built from repeat sales and appraisals of the same homes, rose 74% from 2015 to 2025 and rose 48% from 2020 to 2025, and moved +4.0% in 2025.
- Median home value (owners' estimate)
- $326,100
- Median gross rent
- $1,117
- Homes owned by their occupants
- 69.2%
- Housing units
- 17,153
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 01085?
858 business establishments had a location in this ZIP code in 2023, 10 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade126
- Construction109
- Health care and social assistance95
- Other services (except public administration)85
- Manufacturing81
- Accommodation and food services77
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 01085?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 01097 | Woronoco | 143 | – | 3.2 mi |
| 01071 | Russell | 1,054 | $111k | 5.3 mi |
| 01073 | Southampton | 6,230 | $123k | 5.3 mi |
| 01089 | West Springfield | 28,772 | $69k | 6.5 mi |
| 01077 | Southwick | 9,217 | $121k | 7.0 mi |
| 01030 | Feeding Hills | 12,305 | $94k | 7.1 mi |
| 01040 | Holyoke | 37,813 | $54k | 7.7 mi |
| 01034 | Granville | 2,332 | $91k | 10.5 mi |
| 01050 | Huntington | 2,529 | $96k | 10.9 mi |
| 01107 | Springfield | 12,009 | $36k | 8.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.
Which other ZIP codes use the name Westfield?
1 more ZIP code carries the postal name Westfield, MA without a residential delivery area: PO boxes at the post office, or a single organization with its own ZIP code. The Census Bureau publishes no figures for it.
| ZIP | County |
|---|---|
| 01086 | Hampden County |
Source: GeoNames postal codes (CC BY 4.0), downloaded 2026-10-09; a ZIP code with no Census ZCTA has no residential delivery area.