Zip Code 61008
Belvidere, Illinois — Boone County
📍 ZIP code 61008 is in Belvidere, Boone County, Illinois.
ZIP code 61008 is located in Belvidere, Boone County, Illinois. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 33,697. The area code for ZIP code 61008 is 309.
Quick Answer
Zip code 61008 is in Belvidere, Illinois (Boone County). It has a population of 33,697, median household income of $75,833, and median home value of $185,200.
Population
33,697
Income
$75,833
Home Value
$185,200
Climate
84°F / 13°F
About Zip Code 61008
Zip code 61008 is located in Belvidere, Illinois, within Boone County. Home to approximately 33,697 residents, this area sits at an elevation of 808 ft and falls within the Central (CST/CDT) timezone. The local area code is 309.
The median household income is $75,833 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $185,200, and the cost of living index is 73 (27% below the national average of 100).
Summers average a high of 84°F while winters drop to 13°F. The area receives about 38 in of rain and 31 in of snow annually. The zip code covers 86.4 square miles of land area and 0.6 square miles of water.
Key Statistics
33,697
$75,833
$185,200
Central (CST/CDT)
309
808 ft
86.4 sq mi
40.5
13,406
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Compare With Nearby Zip Codes
| Metric | 61008 | 61038 | 61016 | 61112 | 61108 | 61107 |
|---|---|---|---|---|---|---|
| City | Belvidere, IL | Belvidere, IL | Cherry Valley, IL | Rockford, IL | Rockford, IL | Rockford, IL |
| Population | 33,697 | 1,395 | 5,166 | 116 | 30,202 | 29,473 |
| Median Income | $75,833 | $69,808 | $92,865 | $0 | $63,046 | $75,492 |
| Home Value | $185,200 | $274,200 | $224,600 | $0 | $128,300 | $165,200 |
| Cost of Living | 73 | 98 | 99 | 100 | 60 | 71 |
| Median Age | 40.5 | 46.7 | 46.7 | 80.4 | 39.7 | 43.2 |
Cost of Living
100 = National Average. Belvidere's cost of living is 27% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.4x
Demographics
Zip code 61008 has a population of 33,697 people with a median age of 40.5. There are 13,406 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Belvidere (61008) population trend from 2010 to 2024
↑ 115.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
84°F
13°F
38 in
31 in
Belvidere experiences warm summers with average highs around 84°F. Winters are cold with lows averaging 13°F. With 31 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$185,200
Median Household Income
$75,833
With 13,406 housing units across 86.4 square miles, 61008 has a housing density of 155 units per square mile. The home price-to-income ratio is 2.4x.
Location & Geography
Latitude
42.2443°
Longitude
-88.8411°
Land Area
86.4 sq mi
Water Area
0.6 sq mi
Nearby Zip Codes
Zip codes closest to 61008 (Belvidere, IL) with distances:
All Zip Codes in Belvidere, IL
Other zip codes serving Belvidere:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 61008's $75,833. A way to compare Belvidere to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 61008 (Belvidere, IL). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Belvidere, Illinois?
Belvidere, Illinois uses zip code 61008 along with 3 other zip codes.
What county is zip code 61008 in?
Zip code 61008 is located in Boone County, Illinois.
What is the population of zip code 61008?
The population of zip code 61008 is 33,697 with a median age of 40.5.
Is 61008 in Belvidere, Illinois?
Yes, zip code 61008 is in Belvidere, Boone County, Illinois. The area code is 309.
Frequently Asked Questions
What city is zip code 61008 in?
Zip code 61008 is in Belvidere, Illinois. It is part of Boone County and uses the Central (CST/CDT) timezone.
What is zip code 61008?
Zip code 61008 is a U.S. postal code in Belvidere, Illinois (Boone County). It has a population of 33,697 and covers 86.4 square miles.
What is the population of zip code 61008?
The population of zip code 61008 (Belvidere, IL) is 33,697 with a median age of 40.5. There are approximately 13,406 housing units in this area.
What is the median income in zip code 61008?
The median household income in zip code 61008 (Belvidere, IL) is $75,833 per year. The cost of living index is 73 (100 = national average).
What is the average home price in zip code 61008?
The median home value in zip code 61008 (Belvidere, IL) is $185,200. The cost of living index is 73 compared to the national average of 100.
What county is zip code 61008 in?
Zip code 61008 is located in Boone County, Illinois. The primary city is Belvidere.
What is the area code for zip code 61008?
Zip code 61008 in Belvidere, IL uses area code 309. It is located in the Central (CST/CDT) timezone.
Is zip code 61008 a good place to live?
Zip code 61008 (Belvidere, IL) has a cost of living index of 73 (100 = national average), a median household income of $75,833, and median home values of $185,200. The median age is 40.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 61008?
The cost of living index for zip code 61008 (Belvidere, IL) is 73, where 100 represents the national average. This area is below the national average. Median home value: $185,200.
What schools serve zip code 61008?
Zip code 61008 in Belvidere, Illinois is served by the local school district of Boone County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.