RANKING · 2000 CENSUS · 500 SHOWN OF 6,299
Most densely populated, US cities · 2000
US cities ranked by residents per square mile (2023). Guttenberg, New Jersey leads at 55,995. 6,299 cities qualify in total. Cities with fewer than 5,000 residents are excluded. California carries 12 of the top 25 entries.
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RANKPLACESTATEPOPPOPULATION DENSITYVS 2000
UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which city has the highest population density?
Guttenberg, New Jersey ranks #1 with 55,995 (2000 American Community Survey).
What are the top 5 cities by population density?
Guttenberg, New Jersey, Union City, New Jersey, West New York, New Jersey, Isla Vista, California, Hoboken, New Jersey.
How many cities are in this ranking?
6,299 cities qualify after filtering for population minimums and data availability (minimum 5,000 residents). The ranking covers 2000 ACS 5-year data.
How is population density measured?
Residents per square mile of land area. Source: US Census Bureau, American Community Survey 5-year estimates (2000).