ZIP code
02451
Waltham, MA
02451 covers Waltham in Middlesex County, with 18,153 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 02451. Methodology
ZIP code map of 02451
About ZIP code 02451
Acceptable cities: North Waltham
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 02451. Not ACS. Methodology
People in 02451
Race
- White11,890
- Black or African American1,217
- American Indian or Alaska Native60
- Asian2,342
- Native Hawaiian and Pacific Islander6
- Other race1,276
- Two or more races1,162
Hispanic or Latino (any race): 2,159
Age
- Under 101,788
- 10 to 191,497
- 20 to 292,708
- 30 to 393,167
- 40 to 492,196
- 50 to 592,319
- 60 to 692,184
- 70 to 791,353
- 80 and older741
Income and housing in 02451
Education
- High school graduate93.5%
- Bachelor's degree54.7%
- Graduate degree27.7%
Places covering 02451
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Waltham100.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Middlesex County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Population history for 02451
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 15,310 | |
| 2006 | 14,995 | |
| 2007 | 15,756 | |
| 2008 | 15,430 | |
| 2009 | 15,520 | |
| 2010 | 15,495 | |
| 2011 | 16,662 | 15,872 |
| 2012 | 16,573 | 15,860 |
| 2013 | 17,299 | 15,830 |
| 2014 | 17,454 | 16,120 |
| 2015 | 18,140 | 16,130 |
| 2016 | 18,130 | 15,920 |
| 2017 | 18,646 | 16,040 |
| 2018 | 18,699 | 16,060 |
| 2019 | 18,246 | 15,560 |
| 2020 | 17,470 | 15,930 |
| 2021 | 17,965 | 15,510 |
| 2022 | 18,379 | 15,770 |
| 2023 | 18,153 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 02451
12 nearest ZIP centroids (any distance)
- 02452Waltham1.7 miPop 16,173 · Income $112,902
- 02453Waltham2.3 miPop 30,314 · Income $114,029
- 02421Lexington2.6 miPop 17,798 · Income $212,843
- 01773Lincoln3.4 miPop 5,257 · Income $197,292
- 02478Belmont3.7 miPop 26,966 · Income $177,790
- 02465West Newton3.8 miPop 11,297 · Income $174,518
- 02493Weston3.8 miPop 11,443 · Income $250,000+
- 02466Auburndale3.9 miPop 8,553 · Income $170,852
- 02460Newtonville4.1 miPop 10,033 · Income $154,329
- 02476Arlington4.2 miPop 17,732 · Income $145,150
- 02420Lexington4.4 miPop 16,287 · Income $233,068
- 02472Watertown4.4 miPop 35,317 · Income $123,383
ZIP centroids within 2 miles
| ZIP | City | State | Distance (miles) | ACS population | Median income |
|---|---|---|---|---|---|
| 02452 | Waltham | MA | 1.7 mi | 16,173 | $112,902 |
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 02451 FAQ
- What city is ZIP code 02451 in?
- 02451 is in Waltham, MA.
- What county is 02451 in?
- 02451 is in Middlesex County.
- What is the median household income in 02451?
- The median household income in 02451 is $119,509.
- Which ZIP codes are near 02451?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 02451.