ZIP Code Tabulation Area · Illinois

ZIP Code 61101: Winnebago County, IL

ZIP Code 61101 (Winnebago County, Illinois) has an estimated 19,318 residents in 7,750 households. The median household income is $46,163, the median home value is $90,600 and the median gross rent is $1,037/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

Total population

19,318

Margin of error ±1,342

Median household income

$46,163

Margin of error ±$6,481

Median home value

$90,600

Margin of error ±$10,226

Median gross rent

$1,037/mo

Margin of error ±$58

Median age

37.7 yrs

Margin of error ±2.8 yrs

Mean travel time to work

21.5 min

Margin of error ±3.9 min

How ZIP 61101 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 6110137.7 yrsIllinois39.0 yrsUnited States38.9 yrs

Median household income

ZIP 61101$46,163Illinois$83,390United States$80,734

Per capita income

ZIP 61101$24,971Illinois$46,406United States$44,673

Poverty rate

ZIP 6110130.9%Illinois11.8%United States12.5%

Unemployment rate

ZIP 6110112.2%Illinois5.8%United States5.2%

Bachelor's degree or higher

ZIP 6110116.6%Illinois37.8%United States35.7%

Median home value

ZIP 61101$90,600Illinois$263,300United States$332,700

Median gross rent

ZIP 61101$1,037/moIllinois$1,274/moUnited States$1,413/mo

Owner-occupied homes

ZIP 6110151.4%Illinois67.1%United States65.2%

Mean travel time to work

ZIP 6110121.5 minIllinois27.8 minUnited States26.4 min

Worked from home

ZIP 611017.2%Illinois15.9%United States15.1%

All figures for ZIP 61101

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 61101 — ACS 2020–2024 5-year estimates
MeasureZIP 61101Margin of errorIllinoisUnited States
Total population19,318±1,34212,694,798334,922,499
Median age37.7 yrs±2.8 yrs39.0 yrs38.9 yrs
Households7,750±4805,036,449129,227,496
Median household income$46,163±$6,481$83,390$80,734
Per capita income$24,971±$2,497$46,406$44,673
Poverty rate30.9%±5.7 pts11.8%12.5%
Unemployment rate12.2%±3.8 pts5.8%5.2%
Bachelor's degree or higher16.6%±2.4 pts37.8%35.7%
Median home value$90,600±$10,226$263,300$332,700
Median gross rent$1,037/mo±$58$1,274/mo$1,413/mo
Owner-occupied homes51.4%±4.0 pts67.1%65.2%
Mean travel time to work21.5 min±3.9 min27.8 min26.4 min
Worked from home7.2%±2.1 pts15.9%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 61101
GroupZIP 61101IllinoisUnited States
White alone, not Hispanic or Latino42.9%58.1%57.4%
Black or African American alone, not Hispanic or Latino29.4%13.3%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.5%0.1%0.5%
Asian alone, not Hispanic or Latino1.1%5.9%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.2%0.4%0.6%
Two or more races, not Hispanic or Latino6.1%3.4%4.3%
Hispanic or Latino (of any race)19.9%18.8%19.3%

Where ZIP 61101 is

State
Illinois
Main county
Winnebago County
Largest overlapping place
Rockford (18% of the ZIP's land area)
Land area
41.52 sq mi· about 465 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 Winnebago County

61016 Winnebago County, IL61024 Winnebago County, IL61063 Winnebago County, IL61072 Winnebago County, IL61073 Roscoe, IL61077 Winnebago County, IL61079 Winnebago County, IL61080 South Beloit, IL61088 Winnebago County, IL61102 Rockford, IL61103 Rockford, IL61104 Rockford, IL61107 Rockford, IL61108 Rockford, IL61109 Rockford, IL61111 Loves Park, IL61112 Cherry Valley, IL61114 Rockford, IL61115 Machesney Park, IL

See every ZIP code in Illinois, or compare ZIP 61101 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.