Illinois Gazetteer
ZIP Code 61108 has segments in 2 Counties (Boone, Winnebago).
The ZIP Code maps and database are updated 4 times per year.
Database updated: March 1, 2026, Maps updated: May 1, 2024.
Source: 2020-2024 American Community Survey 5-Year Estimates
POPULATION | |
|---|---|
| Total Population | 30,355 (100%) |
| Population Density | 2,781 per sq mi |
| Diversity Index1 | 62 |
INCOME | |
| Median Household Income | $64,415 |
| Per Capita Income | $30,953 |
| Median Home Value | $144,800 |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 12,751 (100%) |
| Owner Occupied HU | 7,909 (62.0%) |
| Renter Occupied HU | 4,193 (32.9%) |
| Vacant Housing Units | 649 (5.1%) |
HOUSEHOLDS | |
| Total Households | 12,102 |
| Average Household Size | 2.43 |
| Family Households | 7,265 (60.0%) |
The table below compares 61108 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates 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 | # 3691 | 89th |
| Population Density | # 4148 | 88th |
| Median Household Income | # 21147 | 37th |
| Per Capita Income | # 23739 | 30th |
| Diversity Index | # 3008 | 91st |
Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.
