ZIP code
06437
Guilford, CT
06437 covers Guilford in New Haven County, with 22,037 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 06437. Methodology
ZIP code map of 06437
About ZIP code 06437
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 06437. Not ACS. Methodology
People in 06437
Race
- White19,342
- Black or African American217
- American Indian or Alaska Native27
- Asian778
- Native Hawaiian and Pacific Islander5
- Other race255
- Two or more races1,440
Hispanic or Latino (any race): 1,134
Age
- Under 102,036
- 10 to 192,872
- 20 to 291,659
- 30 to 391,911
- 40 to 492,567
- 50 to 593,520
- 60 to 693,590
- 70 to 792,654
- 80 and older1,255
Income and housing in 06437
Education
- High school graduate97.8%
- Bachelor's degree57.6%
- Graduate degree29.4%
Places covering 06437
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.
- Guilford Center11.7%
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.
- New Haven 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
88.3% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 06437
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 22,900 | |
| 2006 | 21,558 | |
| 2007 | 22,127 | |
| 2008 | 21,525 | |
| 2009 | 21,494 | |
| 2010 | 21,547 | |
| 2011 | 22,272 | 21,363 |
| 2012 | 22,353 | 21,450 |
| 2013 | 22,377 | 21,380 |
| 2014 | 22,405 | 20,990 |
| 2015 | 22,392 | 21,070 |
| 2016 | 22,382 | 21,010 |
| 2017 | 22,377 | 21,090 |
| 2018 | 22,285 | 21,010 |
| 2019 | 22,216 | 20,960 |
| 2020 | 22,164 | 21,110 |
| 2021 | 22,113 | 20,840 |
| 2022 | 22,046 | 21,210 |
| 2023 | 22,037 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 06437
12 nearest ZIP centroids (any distance)
- 06443Madison3.9 miPop 17,577 · Income $168,341
- 06471North Branford3.9 miPop 7,073 · Income $120,885
- 06472Northford5.8 miPop 6,414 · Income $108,333
- 06405Branford5.9 miPop 28,090 · Income $97,223
- 06419Killingworth6.8 miPop 6,219 · Income $132,739
- 06473North Haven9.0 miPop 24,527 · Income $127,370
- 06513New Haven9.0 miPop 38,343 · Income $46,520
- 06413Clinton9.1 miPop 13,317 · Income $116,023
- 06422Durham9.5 miPop 7,182 · Income $151,875
- 06512East Haven10.0 miPop 29,347 · Income $84,034
- 06492Wallingford10.6 miPop 44,099 · Income $101,757
- 06517Hamden11.0 miPop 14,867 · Income $97,154
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 06437, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 06437 FAQ
- What city is ZIP code 06437 in?
- 06437 is in Guilford, CT.
- What county is 06437 in?
- 06437 is in New Haven County.
- What is the median household income in 06437?
- The median household income in 06437 is $130,036.
- Which ZIP codes are near 06437?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 06437.