Housing data for Mercer Township, IL

Mercer Township, IL has an estimated 3,917 residents and 1,815 homes (US Census Bureau, 2020–2024 American Community Survey).

It is a township in Mercer County.

30.8% of households rent.

The median gross rent is $810 a month.

Its population grew measurably since 2015–2019 (+1.1%).

Figures last updated on .

Residents
3,917 (±17)
Housing units
1,815 (±118)
Households that rent
30.8%
Median gross rent
$810
Residents since 2015–2019
+1.1%

What stands out in Mercer Township

Households that rent: 30.8% (±8.2 points) in Mercer Township, higher than in Mercer County (16.2%).

Average commute: 18.8 minutes (±3.1) in Mercer Township, lower than in Mercer County (28.1 minutes).

Housing in Mercer Township at a glance

Mercer Township against Mercer County, its state and the nation

Estimate (90% margin of error)
Mercer TownshipMercer CountyIllinoisUnited States
Residents3,917 (±17)15,495 (exact)12,694,798 (exact)334,922,499
Housing units1,815 (±118)7,285 (±30)5,457,452 (±471)143,775,355
Households that rent30.8% (±8.2 points)16.2% (±2.6 points)32.9% (±0.2 points)34.8%
Median gross rent$810 (±$44)$786 (±$55)$1,274 (±$5)$1,413
Median household income$71,042 (±$14,483)$74,182 (±$7,031)$83,390 (±$362)$80,734
Median home value$147,400 (±$11,560)$146,700 (±$7,887)$263,300 (±$797)$332,700
Median real estate taxes (a year)$3,145 (±$275)$2,878 (±$147)$5,298 (±$22)$3,119
Built before 198082.1% (±11.2 points)77.2% (±4.8 points)63.4% (±0.2 points)49.7%
Average commute18.8 minutes (±3.1)28.1 minutes (±1.7)27.8 minutes (±0.1)26.4 minutes
Households with broadband91.2% (±4.0 points)90.5% (±2.0 points)90.8% (±0.1 points)91.0%
Median age of residents38.6 years (±4.6)44.7 years (±0.3)39.0 years (±0.1)38.9 years

Mercer Township covers 35.4 square miles of land, about 111 residents per square mile (Census Bureau Gazetteer).

How Mercer Township has changed since 2015–2019

2015–2019 and 2020–2024 American Community Survey 5-year estimates
2015–20192020–2024Amount of changeVerdict
Residents3,873 (±26)3,917 (±17)+1.1%Measurable increase
Housing units1,932 (±126)1,815 (±118)−6.1%Not a measurable change
Median gross rent$619 (±$105)$810 (±$44)+30.9%No measurable change after inflation
Median home value$97,200 (±$10,553)$147,400 (±$11,560)+51.6%Up after inflation
Median household income$51,007 (±$4,478)$71,042 (±$14,483)+39.3%No measurable change after inflation
Median owner cost with a mortgage$1,039 (±$88)$1,311 (±$98)+26.2%No measurable change after inflation
Median real estate taxes$2,171 (±$238)$3,145 (±$275)+44.9%Up after inflation
Households that rent34.2% (±5.3 points)30.8% (±8.2 points)−3.4 percentage pointsNot a measurable change
Rental vacancy rate11.1% (±8.3 points)13.7% (±12.0 points)+2.6 percentage pointsNot a measurable change

The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.

Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.

The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.

ZIP codes in Mercer Township

ZIP Code Tabulation Areas that cover this place (2020–2024 estimates)
ZIP codeShare of the ZIP’s land in this placeResidentsMedian gross rentMedian home valueMedian household income
6123123%4,962$815$147,600$70,991

A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.

Places near Mercer Township

Nearest places with Census figures, by straight-line distance
PlaceDistanceMedian gross rentMedian home valueHouseholds that rent
Aledo1.2 mi$806$147,60030.3%
Greene Township (Mercer County)5.7 mi$1,045$136,40011.0%
Ohio Grove Township5.9 mi—$253,0005.9%
Millersburg Township6.0 mi$883$87,50017.4%
Perryton Township6.3 mi—$151,60022.3%
Viola7.2 mi$705$120,0008.2%
Matherville7.5 mi$856$134,80011.4%
Seaton7.6 mi$1,097$109,20014.4%

Places in Illinois most like Mercer Township

PlaceMedian gross rentMedian home valueMedian household incomeHouseholds that rent
Aledo$806$147,600$72,29230.3%
Hall Township$849$148,700$71,29630.1%
Princeton Township$783$143,700$65,70528.1%
Princeton$782$134,700$61,94631.4%
Ottawa Township$911$139,500$70,00830.0%
Sterling Township$865$115,200$61,76431.6%

Matched on rent, home value, income, the share who rent, the age of the homes, the share in apartment buildings and the commute, each measured against the spread across Illinois.

HUD Fair Market Rent for Mercer Township, fiscal year 2027

Davenport-Moline-Rock Island, IA-IL MSA, dollars a month
Studio1 bedroom2 bedrooms3 bedrooms4 bedrooms
$787$852$1,056$1,396$1,697

HUD income limits for Mercer Township, fiscal year 2026

Davenport-Moline-Rock Island, IA-IL MSA, annual household income
Household sizeExtremely low (30%)Very low (50%)Low (80%)
1 person$20,500$34,150$54,600
2 people$23,400$39,000$62,400
3 people$27,320$43,900$70,200
4 people$33,000$48,750$78,000
5 people$38,680$52,650$84,250
6 people$44,360$56,550$90,500
7 people$50,040$60,450$96,750
8 people$55,720$64,350$103,000

These are the limits HUD sets for its housing programs in the Davenport-Moline-Rock Island, IA-IL MSA, where HUD’s median family income for fiscal year 2026 is $97,500.

A program can use its own limits; tax-credit and local programs often do.

Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.

Margins of error are at the 90% confidence level.

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Questions about Mercer Township

What is the average rent in Mercer Township, IL?

The Census Bureau publishes the median rather than the average: the median gross rent in Mercer Township is $810 (±$44) a month (2020–2024 American Community Survey), so half of renting households pay less and half pay more.

How much is a one-bedroom apartment in Mercer Township?

The median gross rent for a one-bedroom home in Mercer Township, IL is $547 (±$407) a month (2020–2024 American Community Survey).

Are renters in Mercer Township rent-burdened?

34.4% of renting households in Mercer Township pay 30% or more of their income in gross rent, the share housing researchers usually call rent-burdened (2020–2024 American Community Survey).

How many renters are there in Mercer Township?

Mercer Township has an estimated 509 (±144) renting households, 30.8% of its occupied homes (2020–2024 American Community Survey).

What is the median household income in Mercer Township?

The median household income in Mercer Township is $71,042 (±$14,483) a year (2020–2024 American Community Survey).

What is the average home value in Mercer Township, IL?

The Census Bureau publishes the median: $147,400 (±$11,560) for owner-occupied homes in Mercer Township (2020–2024 American Community Survey).

Is Mercer Township growing?

In Mercer Township, the number of residents went from 3,873 in 2015–2019 to 3,917 in 2020–2024 (+1.1%), a measurable increase.

What ZIP codes are in Mercer Township?

The ZIP code that covers Mercer Township is 61231.

What is the median rent in ZIP code 61231?

The median gross rent in ZIP Code Tabulation Area 61231 is $815 (±$44) a month (2020–2024 American Community Survey).

Sources

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Mercer township, Mercer County, Illinois (county subdivision:48398, in state:17 county:131).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.

Figures last updated on .

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