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ZipNumbers

Mercer County · Illinois

ZIP code 61279

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 61279 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
960

ZCTA residents

Median income
$87,279

Household, past 12 months

Median home
$164,700

Owner-occupied value

Sales tax
6.25%

Illinois state rate

Quick answer

ZIP 61279 sits in Mercer County, Illinois and is home to 960 people. Median household income is $87,279, the median home is worth $164,700 and median gross rent is $1,045. 93.8% of households own their home, and purchases are taxed at 6.25% (Illinois state rate).

County
Mercer County

FIPS 17131

State
Illinois (IL)

1,396 ZIPs covered

Area codes
Not published

No NANPA match for this ZIP

Metro area
Outside covered metros

Rate jurisdiction used for tax

The numbers for 61279

American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.

Population
960ZIP 61279 residents
Median household income
$87,279Past 12 months, inflation adjusted
Median home value
$164,700Owner-occupied units
Median gross rent
$1,045Rent plus utilities, monthly
Median age
41.4 yrsAll residents
Homeownership rate
93.8%Owner-occupied households

Sales tax in 61279

What a purchase inside this ZIP costs at checkout.

Rate applied
6.25%State base rate only
Tax on $100
$6Rounded to the dollar
Tax on $1,000
$63Before any exemptions

Illinois levies 6.25% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.

Affordability in this ZIP

Derived from the Census medians above — indicative, not an offer.

Rent burden
14%Median rent ÷ median income
Price-to-income
1.9×Home value ÷ household income
Est. mortgage
$855/mo20% down, 30-yr at 6.75%
Poverty rate
3.4%Residents below poverty line

A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.

How 61279 compares

ZIP 61279 against the median ZIP in Mercer County and across Illinois.

MeasureZIP 61279County medianState medianvs state
Median household income$87,279$71,154$72,734+20%
Median home value$164,700$126,500$146,900+12%
Median gross rent$1,045$774$906+15%
Population9609601,856-48%

Medians are computed across the 13 ZIP areas in Mercer County and the 1396 ZIP areas in Illinois.

Statewide rank

Where this ZIP places among all 1396 Illinois ZIP areas.

Income

richer than 71% of 1,344 state ZIPs

#393
Home value

above 58% of 1,335 state ZIPs

#556
Population

larger than 33% of 1,396 state ZIPs

#933

Comparable ZIP codes

Illinois ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
60142McHenry County$87,286$324,300$1,377
61250Whiteside County$87,308$168,500$850
61358LaSalle County$87,143$204,000$860
61724McLean County$87,143$133,700$875
60559DuPage County$87,474$356,400$1,491
60911Iroquois County$87,500$151,900$833

Nearby ZIP codes

Other ZIP codes filed under Mercer County.

ZIP 61279 questions

Common questions about this ZIP code.

Where is ZIP code 61279?
ZIP 61279 lies mostly in Mercer County, Illinois. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
What sales tax do I pay in 61279?
Illinois charges 6.25% statewide, plus any county, city or district rate that applies locally.
Is 61279 expensive to live in?
Median rent runs $1,045 a month, about 14% of median household income, and the median home is worth $164,700+12% against the typical Illinois ZIP.
Is a ZCTA the same as a postal ZIP code?
Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.

Related pages for this area.

Sources & transparency

Every figure on this page is a published estimate for ZIP Code Tabulation Area 61279, except the affordability ratios and mortgage estimate, which we derive from those medians and label as estimates.

Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.