County ProfileIL
Jo Daviess County
Population: 22,035 · 9 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
22,035
People
Median age
51.5
Housing
Total households
10,391
Income
Median household income
$73,993
Housing
Total housing units
13,440
Employment
Employment rate
57.4%
Education
Bachelor’s degree or higher
28.9%
Healthcare
Insured population
95.3%
County details
Local time 02:17:17(CT)| Name | Jo Daviess |
|---|---|
| Total ZIP codes | 9total |
| ZIP codes (by type) | 8 Standard1 PO Box |
| Area code | 779, 815 |
| Timezone | Central Time (CT) |
| Coordinates | 42.3623905, -90.2114705 |
| Land area | 600.9 sq miles(1,556.4 km²) |
Map of Jo Daviess county, Illinois with ZIP codes
Cities and Communities in Jo Daviess County
Compare the largest cities in Jo Daviess County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Galena | 3,308 | $58,689 | 1ZIPs |
| Stockton | 1,728 | $46,934 | 1ZIPs |
| East Dubuque | 1,505 | $67,891 | 1ZIPs |
| Warren | 1,323 | $75,813 | 1ZIPs |
| Hanover | 863 | $42,250 | 1ZIPs |
| Elizabeth | 694 | $56,250 | 1ZIPs |
| Scales Mound | 436 | $69,141 | 1ZIPs |
| Apple River | 347 | $44,028 | 1ZIPs |
| Nora | 107 | $54,073 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Jo Daviess County
Review the most populated postal areas across Jo Daviess County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS