Geographic-scope notice: Brentwood is not a separately-incorporated place in the U.S. Census Bureau's Place geography – it is either a neighborhood within a larger municipality (in Suffolk County) or a town-class subdivision in a state where the Census reports demographics at the town rather than place level. To avoid presenting county-level aggregates as city-level data, this page does not show synthetic Census or health figures for Brentwood. For the surrounding county aggregates, see the New York state directory.
City safety & data profile
BrentwoodNY
Brentwood, NY is a 61K-resident city in Suffolk County.
Suffolk County, New York. Federal health, economic, and safety indicators for Brentwood, drawn from the U.S. Census Bureau American Community Survey, CDC PLACES, and CMS Hospital Compare. Brentwood has a population larger than 84% of the 4,640 U.S. cities Areazine tracks.
Data updated 2026-07-19
- 61K
- Population
- Top 16%
- By size
The read on Brentwood
Brentwood is one of the 4,640 U.S. cities Areazine tracks.
The quick read
Reading Brentwood, NY beyond the headline numbers
Brentwood sits inside Suffolk County, New York, at roughly 40.78°N, -73.25°W. Population 60,664.
Sources: U.S. Census ACS, CDC PLACES, CMS Hospital Compare, plus live alerts for Brentwood from FEMA, NOAA, FDA, and CPSC. Comparison bars benchmark each metric against the national reference.
Safety Context
Brentwood, NY is located in Suffolk County, New York. With a population of 61K, Safety alerts for the Brentwood area are monitored from federal and state agencies including FEMA, NOAA, FDA, and CPSC.
Safety Guides
Primary source data
EPA Outdoor Air Quality Data
Federal monitoring network, every measurement we report
AirNow - New York
Real-time AQI for every monitored New York location
National Weather Service
NOAA active watches, warnings, advisories
CDC Air Quality & Health
Health-impact reference for every AQI category
EPA NAAQS standards
National Ambient Air Quality Standards, the regulatory thresholds
Nearby Cities 8
Using Brentwood's profile
Use this as a starting research checklist, not a verdict on whether to live here.
- Check live recalls, weather and hazard alerts scoped to the Brentwood area before relying on national headlines. Check your area
- Read the poverty rate alongside the income figure, two places with the same median can have very different realities.
- Compare Brentwood against New York peers on any ranking lens. Explore New York
Population and economics (income, home value, poverty, education) are place-level U.S. Census ACS; health is CDC PLACES; hospital counts reflect facilities in and around the city.
Data Sources
All data on this page comes from official U.S. government sources. Population and economic data from the Census Bureau American Community Survey (2024 5-year estimates, place geography). Health data from the CDC PLACES program (2023). Hospital ratings from CMS Hospital Compare (2024). Climate data from NOAA. Education data from NCES. Cost of living from Bureau of Economic Analysis. Crime statistics, where referenced on Areazine, originate from the FBI Crime Data Explorer. Housing market figures referenced on Areazine come from HUD Fair Market Rents. Census economics and population are at place geography; some health and hospital indicators are reported at the county level (Suffolk County) where that is the smallest published unit.
Every figure on Areazine is published directly from official U.S. government sources, no number is typed in by an editor. City demographic and health figures are compiled directly from U.S. Census, CDC, and CMS releases, updated quarterly within 30 days of upstream release. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.