Trenton is home to 18,125 people in Michigan. At a median age of 48.2, this is an older place than the country as a whole. 83% of homes are owner-occupied. The foreign-born share is 3%. Home values have risen by half since 2000, reaching $210,600. There are 2,502 people per square mile.
At a glance
Average income
median household income $82,212, near the US median
US median: $82,259
Older
median age 48.2
US median: 38.9
Less educated
27% hold a bachelor's degree
US average: 36%
More affordable
home values down 13%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Trenton
What changed most since 1990
Population20,586 → 18,125(−12%)US over the same years: +35%
Median age37.7 → 48.2(+10.5 years)US over the same years: +6.0 years
White share97.5% → 86.8%(−10.7 pts)US over the same years: −17.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)18.7%(180)
US avg: 26.4%
Gulf War (1990s)15.7%(151)
US avg: 24.3%
Vietnam era38.2%(368)
US avg: 33.1%
Korean War6.3%(61)
US avg: 4.5%
World War II4%(39)
US avg: 1%
Share of the 963 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Trenton, decade by decade
Trenton population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
20,586
$98,712
$193,926
18.3%
6.2
2000
19,584
$90,292
$242,827
20.0%
11.1
2010
18,853
$78,893
$225,280
23.2%
16.5
2020
18,544
$84,491
$189,320
24.8%
29.6
2024
18,125
$82,212
$210,600
27.5%
30.1
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
