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Warren County · Illinois

ZIP code 61478

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 61478 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
397

ZCTA residents

Median income
$80,577

Household, past 12 months

Median home
$73,800

Owner-occupied value

Sales tax
6.25%

Illinois state rate

Quick answer

ZIP 61478 sits in Warren County, Illinois and is home to 397 people. Median household income is $80,577, the median home is worth $73,800 and median gross rent is —. 100% of households own their home, and purchases are taxed at 6.25% (Illinois state rate).

County
Warren County

FIPS 17187

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 61478

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

Population
397ZIP 61478 residents
Median household income
$80,577Past 12 months, inflation adjusted
Median home value
$73,800Owner-occupied units
Median gross rent
—Rent plus utilities, monthly
Median age
18.4 yrsAll residents
Homeownership rate
100%Owner-occupied households

ZIP 61478 in context

How this area compares with national benchmarks.

ZIP 61478 is a very small community in Warren County, Illinois, with 397 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #1164 of 1,396 ranked by population — larger than 16% of them. The median age here is 18.4 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in ZIP 61478 earn a median of $80,577 a year, 2.6% above the national figure of $78,538. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 18.6% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in ZIP 61478 is valued at $73,800, 75.7% below the national figure, while median gross rent runs not published a month. The home-price-to-income ratio works out to 0.9×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 100% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

A median age of 18.4 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address. Median income runs above the national figure while poverty also runs above it — a split distribution, not a uniformly comfortable place. Averages hide that; the two numbers together do not.

The Census withheld gross rent for ZIP 61478 because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.

Reading ZIP 61478 in context

How 61478 sits inside Warren County and Illinois.

ZIP 61478 is tabulated inside Warren County, Illinois, one of 8 ZIP areas the Census publishes for that county and 1,396 across Illinois. This is one of the smallest tabulated ZIP areas in the state, the kind of rural route where a single subdivision or farm cluster accounts for most addresses. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 61478 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 61478 reports a median household income of $80,577, 28% above the $63,125 county median, and 11% above the $72,734 typical IL ZIP. Owner-occupied homes are valued at a median of $73,800, 23% below the county figure and 50% below the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at not published a month, which is why it reads higher than the advertised rent on a listing for the same unit.

Illinois charges 6.25% statewide, and local governments overlapping 61478 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 61478 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.

Sales tax in 61478

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
—Median rent ÷ median income
Price-to-income
0.9×Home value ÷ household income
Est. mortgage
$383/mo20% down, 30-yr at 6.75%
Poverty rate
18.6%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 61478 compares

ZIP 61478 against the median ZIP in Warren County and across Illinois.

MeasureZIP 61478County medianState medianvs state
Median household income$80,577$63,125$72,734+11%
Median home value$73,800$96,200$146,900-50%
Median gross rent—$850$906—
Population3976621,856-79%

Medians are computed across the 8 ZIP areas in Warren County and the 1396 ZIP areas in Illinois.

Statewide rank

Where this ZIP places among all 1396 Illinois ZIP areas.

Income

richer than 63% of 1,344 state ZIPs

#504
Home value

above 6% of 1,335 state ZIPs

#1,255
Population

larger than 17% of 1,396 state ZIPs

#1,164

Comparable ZIP codes

Illinois ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
61036Jo Daviess County$80,574$258,100$758
62673Menard County$80,606$134,400—
62067Madison County$80,515$220,500$1,057
60964Kankakee County$80,649$178,100$937
62231Clinton County$80,660$158,400$1,043
62638Morgan County$80,395$122,000$928

Nearby ZIP codes

Other ZIP codes filed under Warren County.

Adjacent ZIP Codes

Other ZIP codes in Warren County, Illinois.

ZIP 61478 questions

Common questions about this ZIP code.

Where is ZIP code 61478?
ZIP 61478 lies mostly in Warren 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 61478?
Illinois charges 6.25% statewide, plus any county, city or district rate that applies locally.
Is 61478 expensive to live in?
Median rent runs — a month, and the median home is worth $73,800 — -50% 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 61478, 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.