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Trenton population

Trenton, New Jersey had an estimated 91,506 residents on July 1, 2025, the 398th-largest city in the US. That is up 7.8% since the 2010 Census and up 7.2% since 2000.

TrentonNew JerseyPop. 91,506
Population, July 2025
91,506+0.8% since April 2020
People per sq mile
12,0317.6 sq mi of land
Median age
34.812% are 65 or older
Households with kids
31.7%with anyone under 18

Population by year, 2000 to 2025

70k75k81k86k92k2000: 85,39520002001: 85,5982002: 85,68020022003: 85,9212004: 86,09420042005: 85,8482006: 85,62320062007: 85,2582008: 85,07520082009: 84,9512010: 84,91320102011: 84,8612012: 84,65420122013: 84,5362014: 84,07620142015: 83,5592016: 83,36820162017: 83,5772018: 83,73120182019: 83,3752020: 90,81520202021: 90,0212022: 89,75820222023: 90,5832024: 91,31020242025: 91,5062025
Darker bars are the April 2000, 2010 and 2020 benchmarks; the rest are July 1 estimates. Source: US Census Bureau population estimates (intercensal 2000-2010, Vintage 2020 and Vintage 2025).
YearPopulationChangeBasis
202591,506+196Estimate, July 1
202491,310+727Estimate, July 1
202390,583+825Estimate, July 1
202289,758-263Estimate, July 1
202190,021-794Estimate, July 1
202090,815+7,440April 2020 estimates base
201983,375-356Estimate, July 1
201883,731+154Estimate, July 1
201783,577+209Estimate, July 1
201683,368-191Estimate, July 1
201583,559-517Estimate, July 1
201484,076-460Estimate, July 1
201384,536-118Estimate, July 1
201284,654-207Estimate, July 1
201184,861-52Estimate, July 1
201084,913-382010 Census (April 1)
200984,951-124Estimate, July 1
200885,075-183Estimate, July 1
200785,258-365Estimate, July 1
200685,623-225Estimate, July 1
200585,848-246Estimate, July 1
200486,094+173Estimate, July 1
200385,921+241Estimate, July 1
200285,680+82Estimate, July 1
200185,598+203Estimate, July 1
200085,395April 2000 estimates base

Year-to-year changes across 2010 and 2020 mix census counts with estimates, so small jumps at those years are partly method changes.

Frequently asked questions

What is the population of Trenton in 2025?

The Census Bureau estimates Trenton had 91,506 residents on July 1, 2025, making it the 398th-largest city in the US.

Is Trenton growing?

Yes. Trenton has grown 7.8% since the 2010 Census (84,913 people), and grown 0.8% since 2020.

What was the population of Trenton in 2000?

About 85,395 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 84,913.

How dense is Trenton?

Trenton has about 12,031 people per square mile of land (7.6 square miles).

More about Trenton

See cost of living, jobs and commutes in Trenton, Trenton weather by month, or every Trenton ZIP code. For the biggest cities in the country, see the largest US cities.