61080 ZIP Code Profile, Map, Data & Demographics

ZIP Code Type: STANDARD
County: Winnebago County
Centroid: Latitude 42.477, Longitude -88.972
Time Zone: Central Time Zone (UTC -6 hours)
Observes DST: Yes

ZIP Code 61080 has segments in 2 Counties (Boone, Winnebago).

Businesses Addresses: 307
PO Box Addresses: 96
Residential Addresses: 4,437

Multi-Family Addresses: 184
Single Family Addresses: 4,253

The ZIP Code maps and database are updated 4 times per year.
Database updated: June 1, 2025, Maps updated: May 1, 2024.

South Beloit, IL 61080 Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	11,072 (100%)
Population in Households	10,987 (99.2%)
Population in Families	9,008 (81.4%)
Population in Group Quarters¹	85 ( 0.8%)
Population Density	452
Diversity Index²	52


INCOME
Median Household Income	$79,533
Average Household Income	$94,366
% of Income for Mortgage⁴	15%
Per Capita Income	$36,949
Wealth Index⁵	73
Socioeconomic Status Index⁶	Moderate (51.9)

HOUSING
Total HU (Housing Units)	4,686 (100%)
Owner Occupied HU	3,293 (70.3%)
Renter Occupied HU	1,040 (22.2%)
Vacant Housing Units	353 ( 7.5%)
Median Home Value	$195,268
Average Home Value	$228,383
Housing Affordability Index³	123

HOUSEHOLDS
Total Households	4,333
Average Household Size	2.54
Family Households	2,889
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

South Beloit, IL 61080 - Peer Comparisons by Rank and Percentile

The table below compares 61080 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.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.14%	-0.34%
Households	0.29%	0.08%
Families		-0.08%
Median Household Income		1.99%
Per Capita Income		2.20%
Owner Occupied HU		0.47%

Variable Description	Rank	Percentile
Total Population	# 346	75th
Population Density	# 425	69th
Median Household Income	# 604	56th
Housing Affordability Index	# 601	44th
Per Capita Income	# 847	38th
Diversity Index	# 305	78th

61080 ZIP Code Profile, Map, Data & Demographics

ZIP Code 61080: Basic Data & USPS Preferred City Name

South Beloit, IL 61080 Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

South Beloit, IL 61080 - Peer Comparisons by Rank and Percentile

Popular Places Near ZIP Code 61080

Use HTL Address Research for a Illinois Address and get...

Quick & Easy Ways to...

Illinois Census Data Comparison Tool

More Tools and Resources:

Winnebago County