Residential delivery area · Massachusetts
ZIP Code 02452: Waltham, MA
ZIP code 02452 is in Waltham, Massachusetts, entirely in Middlesex County (Census 2020 ZIP-county file). About 16,000 people live there (Census Bureau, ACS 2020-2024), the least populous of Waltham's 3 residential ZIP codes. Median household income is $118,431 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Waltham · 3 residential ZIPs
- County
- Middlesex County
- Census places
- Waltham
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House district
- MA-5 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 3.8 sq mi · 4,146 people per sq mi
- PO Box ZIPs
- 02454 also use the name Waltham
Where is ZIP code 02452?
02452 centers on 42.396°, -71.220° and covers 3.8 square miles of land plus 0.0 of water. It borders 4 ZIP codes: 02451, 02478, 02453, 02421.
The map draws ZIP code areas only. For the streets inside 02452, 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 02452 compare with the rest of Waltham?
| Measure | 02452 | In Waltham | In Middlesex County | In MA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 15,808 | 3rd of 3 | 47th of 83 | 176th of 539 |
| Median household income | $118k | 2nd of 3 | 62nd of 78 | 181st of 406 |
| Median home value | $808k | 1st of 3 | 37th of 80 | 87th of 449 |
Its median household income is higher than in 90% of U.S. residential ZIP codes, and it is denser than 92% 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 02452?
The 2020 Census counted 15,340 people in 02452; the ACS, which samples households over 2020-2024, estimates 15,808. Between the 2010 and 2020 censuses its population grew 7.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 15,808
- 2020 Census count
- 15,340+7.7% since 2010 (14,238)
- Households
- 5,362
- Median age
- 31.6
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 02452?
Of the 15,808 people the ACS estimates in 02452, 11.4% are under 18 and 16.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (62.3%), then Hispanic or Latino (12.3%).
- Under 1811.4%
- 18 to 6472.4%
- 65 and older16.2%
- White, not Hispanic62.3%
- Hispanic or Latino12.3%
- Black, not Hispanic10.3%
- Asian, not Hispanic10.1%
- Other or two or more5.1%
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 02452 earn?
Median household income is $118,431 (ACS 2020-2024), the 62nd highest of the 78 ranked ZIP codes in Middlesex County. It is not measurably different from 2015-2019 ($111,355 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $118,431±$24,056
- Income per person
- $52,042
- Below the poverty line
- 11.7%
- Unemployed (of the labor force)
- 3.7%
- Adults 25+ with a bachelor's degree
- 53.8%
- Adjusted gross income per tax return, 2022
- $108,5336,730 returns; wages 69% 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 02452?
FHFA's house price index for 02452, built from repeat sales and appraisals of the same homes, rose 71% from 2015 to 2025 and rose 29% from 2020 to 2025, and moved +1.1% in 2025.
- Median home value (owners' estimate)
- $808,300
- Median gross rent
- $2,322
- Homes owned by their occupants
- 51.1%
- Housing units
- 5,609
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 02452?
417 business establishments had a location in this ZIP code in 2023, 34 fewer than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance60
- Professional, scientific, and technical services53
- Construction47
- Accommodation and food services44
- Other services (except public administration)43
- Retail trade40
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 02452?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 02451 | Waltham | 17,393 | $122k | 1.7 mi |
| 02478 | Belmont | 27,175 | $183k | 2.0 mi |
| 02453 | Waltham | 31,591 | $115k | 2.2 mi |
| 02421 | Lexington | 18,080 | $228k | 3.1 mi |
| 02472 | Watertown | 35,620 | $126k | 2.8 mi (near) |
| 02476 | Arlington | 17,708 | $151k | 2.8 mi (near) |
| 02460 | Newtonville | 10,099 | $178k | 3.1 mi (near) |
| 02465 | West Newton | 11,697 | $194k | 3.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.