ZIP Code 61111 has segments in 2 Counties (Boone, Winnebago).
The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.
POPULATION | |
|---|---|
| Total Population | 22,349 (100%) |
| Population in Households | 22,197 (99.3%) |
| Population in Families | 16,277 (72.8%) |
| Population in Group Quarters1 | 152 ( 0.7%) |
| Population Density | 2,049 |
| Diversity Index2 | 49 |
INCOME | |
| Median Household Income | $65,942 |
| Average Household Income | $86,801 |
| % of Income for Mortgage4 | 16% |
| Per Capita Income | $39,345 |
| Wealth Index5 | 69 |
| Socioeconomic Status Index6 | Moderate (47.0) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 10,578 (100%) |
| Owner Occupied HU | 6,876 (65.0%) |
| Renter Occupied HU | 3,248 (30.7%) |
| Vacant Housing Units | 454 ( 4.3%) |
| Median Home Value | $166,525 |
| Average Home Value | $191,823 |
| Housing Affordability Index3 | 120 |
HOUSEHOLDS | |
| Total Households | 10,124 |
| Average Household Size | 2.19 |
| Family Households | 5,893 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | -0.63% | -0.46% |
| Households | 0.16% | 0.02% |
| Families | -0.13% | |
| Median Household Income | 1.97% | |
| Per Capita Income | 2.22% | |
| Owner Occupied HU | 0.48% |
The table below compares 61111 to the other 1,358 ZIP Codes in Illinois by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 213 | 84th |
| Population Density | # 224 | 84th |
| Median Household Income | # 979 | 28th |
| Housing Affordability Index | # 552 | 41st |
| Per Capita Income | # 681 | 50th |
| Diversity Index | # 326 | 76th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.