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Buying a home in Trenton, Illinois

The typical owner-occupied home in Trenton is worth about $178,200, 32% below the Illinois median of $263,300 and 46% below the national median of $332,700. Owners pay a median $3,384 a year in property taxes, about 1.90% of their home's value, lower than the Illinois rate of 2.01%. The median household earns $80,795 a year, so the median home costs 2.2 times the median income (3.2 times for Illinois). 71% of occupied homes here are lived in by their owners, and 56% of those owners still have a mortgage.

Trenton at a glance

Trenton Illinois U.S.
Median home value $178,200 $263,300 $332,700
Median property tax paid per year $3,384 $5,298 $3,119
Property tax as a share of value 1.90% 2.01% 0.94%
Median household income $80,795 $83,390 $80,734
Homes lived in by their owners 71% 67% 65%
Owner homes with a mortgage 56% 61% 61%
Median monthly costs, owners with a mortgage $1,540 $1,987 $1,963
Those costs as a share of the owners' income 16.8% 20.6% 21.0%
Median rent $857 $1,274 $1,413
Rent as a share of renters' income 20.9% 29.1% 30.6%
Median year homes were built 1971 1971 1980
Vacant homes 6.8% 7.7% 10.1%
Population 2,664 12,694,798 334,922,499

What a typical home costs per month in Trenton

At this week's average 30-year rate of 7.11%, buying the median Trenton home of $178,200 with 20% down costs about $1,315 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $1,612, because the loan is bigger and FHA adds mortgage insurance.

Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $56,375 for the 20%-down payment. That payment is 20% of the median Trenton household income of $80,795; at that income and 20% down, the 28% guideline points to a home of about $255,000.

The median rent here is $857 a month, so owning the median home costs about $458 a month more than renting, before you count the equity you build and any tax benefits.

20% down, 30-year conventional loan
Down payment$35,640
Loan amount$142,560
Principal and interest$959
Property taxes (1.90% a year)$282
Homeowners insurance (our estimate, 0.5% a year)$74
PMI$0
Total per month$1,315

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3.5% down, 30-year FHA loan
Down payment$6,237
Loan amount$174,972
Principal and interest$1,177
Property taxes (1.90% a year)$282
Homeowners insurance (our estimate, 0.5% a year)$74
FHA mortgage insurance$79
Total per month$1,612

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Questions about home buying in Trenton

What is the median home value in Trenton?

About $178,200 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.

How much are property taxes in Trenton?

Homeowners pay a median $3,384 a year, which is about 1.90% of the median home value. Your bill depends on your home's assessed value and local rates.

What income do you need to buy a home in Trenton?

For the median home with 20% down at 7.11%, the payment is about $1,315 a month. Keeping that under 28% of gross income takes about $56,375 a year.

More about Trenton

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data