ZIP Code Tabulation Area · Illinois

ZIP Code 61031: Lee County, IL

ZIP Code 61031 (Lee County, Illinois) has an estimated 1,492 residents in 607 households. The median household income is $75,446, the median home value is $136,700 and the median gross rent is $823/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

1,492

Margin of error ±213

Median household income

$75,446

Margin of error ±$18,500

Median home value

$136,700

Margin of error ±$24,312

Median gross rent

$823/mo

Margin of error ±$88

Median age

49.9 yrs

Margin of error ±6.2 yrs

Mean travel time to work

30.8 min

Margin of error ±12.3 min

How ZIP 61031 compares with Illinois and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 6103149.9 yrsIllinois39.0 yrsUnited States38.9 yrs

Median household income

ZIP 61031$75,446Illinois$83,390United States$80,734

Per capita income

ZIP 61031$35,828Illinois$46,406United States$44,673

Poverty rate

ZIP 610318.2%Illinois11.8%United States12.5%

Unemployment rate

ZIP 610310.8%Illinois5.8%United States5.2%

Bachelor's degree or higher

ZIP 6103128.2%Illinois37.8%United States35.7%

Median home value

ZIP 61031$136,700Illinois$263,300United States$332,700

Median gross rent

ZIP 61031$823/moIllinois$1,274/moUnited States$1,413/mo

Owner-occupied homes

ZIP 6103177.4%Illinois67.1%United States65.2%

Mean travel time to work

ZIP 6103130.8 minIllinois27.8 minUnited States26.4 min

Worked from home

ZIP 610316.9%Illinois15.9%United States15.1%

All figures for ZIP 61031

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 61031 — ACS 2020–2024 5-year estimates
Measure	ZIP 61031	Margin of error	Illinois	United States
Total population	1,492	±213	12,694,798	334,922,499
Median age	49.9 yrs	±6.2 yrs	39.0 yrs	38.9 yrs
Households	607	±93	5,036,449	129,227,496
Median household income	$75,446	±$18,500	$83,390	$80,734
Per capita income	$35,828	±$5,228	$46,406	$44,673
Poverty rate	8.2%	±3.7 pts	11.8%	12.5%
Unemployment rate	0.8%	±0.9 pts	5.8%	5.2%
Bachelor's degree or higher	28.2%	±7.9 pts	37.8%	35.7%
Median home value	$136,700	±$24,312	$263,300	$332,700
Median gross rent	$823/mo	±$88	$1,274/mo	$1,413/mo
Owner-occupied homes	77.4%	±7.1 pts	67.1%	65.2%
Mean travel time to work	30.8 min	±12.3 min	27.8 min	26.4 min
Worked from home	6.9%	±5.2 pts	15.9%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 61031
Group	ZIP 61031	Illinois	United States
White alone, not Hispanic or Latino	87.0%	58.1%	57.4%
Black or African American alone, not Hispanic or Latino	0.5%	13.3%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.0%	0.1%	0.5%
Asian alone, not Hispanic or Latino	0.2%	5.9%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.0%	0.2%
Some other race alone, not Hispanic or Latino	0.0%	0.4%	0.6%
Two or more races, not Hispanic or Latino	3.6%	3.4%	4.3%
Hispanic or Latino (of any race)	8.6%	18.8%	19.3%

Where ZIP 61031 is

State: Illinois
Main county: Lee County— also overlaps Ogle County
Largest overlapping place: Franklin Grove (1% of the ZIP's land area)
Land area: 44.93 sq mi· about 33 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Lee County

60530 Lee County, IL 60553 Lee County, IL 61006 Lee County, IL 61021 Lee County, IL 61042 Lee County, IL 61057 Nachusa, IL 61310 Lee County, IL 61318 Lee County, IL 61324 Lee County, IL 61353 Lee County, IL 61367 Lee County, IL 61378 Lee County, IL

See every ZIP code in Illinois, or compare ZIP 61031 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.