61011 ZIP Code — Caledonia, IL

Boone County, Illinois

ZIP code 61011 is located in Caledonia, Illinois, within Boone County. It covers approximately 38.53 square miles and serves a population of 2,681 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 815.

About ZIP code 61011

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $273,500. Owner-occupancy is high at 95%, well above the national average.

Median household income is $152,250. The poverty rate of 2% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 26 minutes is near the national average.

Educational attainment is high — 56% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 61011 reflects a community defined by a highly educated population and high homeownership.

2,681

population

38.53

sq mi land

Standard

ZIP type

Central (CT)

timezone

61011 ZIP code map

Cities in ZIP code 61011

Below are the cities the US Postal Service accepts for ZIP code 61011. Using any city not on this list may result in mail delivery delays.

City	Status
Caledonia	Acceptable
Caledonia	Preferred

Nearby ZIP codes

61073 Roscoe (3.6 mi) 61065 Poplar Grove (5 mi) 61115 Machesney Park (5.2 mi) 61114 Rockford (6.8 mi) 61080 South Beloit (6.9 mi) 61012 Capron (8.4 mi) 61103 Rockford (8.5 mi) 61107 Rockford (8.8 mi) 61108 Rockford (10.3 mi) 61112 Rockford (10.6 mi) 61008 Belvidere (11.3 mi) 53525 Clinton (11.5 mi)

Demographics updated 05/2026

Population
Total population	2,681
Population density	70 / sq mi
State FIPS	17
County FIPS	007

Geography
Land area	38.53 sq mi
Water area	0.07 sq mi
Latitude	42.3963
Longitude	-88.9284
Timezone	Central (CT)
Area code	815

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	16.2%	36.3%	37.2%
$50k – $100k	22.1%	31.4%	29.6%
$100k – $200k	33.0%	25.2%	24.4%
Over $200k	28.7%	7.0%	8.8%

Demographics & statistics

2,681

Population

People per sq mi

48.4

Median age

$152,250

Median household income

$61,160

Per capita income

$273,500

Median home value

$1,726

Median monthly rent

94.6%

Home ownership

2.3%

Poverty rate

15.8%

Unemployment

932

Housing units

55.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

176

20–24

146

160

25–34

133

35–44

279

45–54

233

160

55–59

133

60–64

192

65–74

161

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	384	14.3%
18 and over	2,297	85.7%
65 and over	487	18.2%
Median age	48.4 years

Race & ethnicity

White 89.3%

Two or more races 4.4%

Black or African American 3.6%

Hispanic or Latino 1.8%

Asian 1%

Group	Count	%
White	2,438	89.3%
Two or more races	120	4.4%
Black or African American	97	3.6%
Hispanic or Latino	50	1.8%
Asian	26	1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	16.2%	36.3%	37.2%
$50k – $100k	22.1%	31.4%	29.6%
$100k – $200k	33.0%	25.2%	24.4%
Over $200k	28.7%	7.0%	8.8%

Under $10k 1.4%

$15k–$25k 1.5%

$25k–$35k 2.5%

$35k–$50k 7.3%

$50k–$75k 13.0%

$75k–$100k 5.3%

$100k–$150k 18.1%

$150k–$200k 11.3%

$200k+ 39.6%

Range	% of households
Under $10k	1.4%
$15k–$25k	1.5%
$25k–$35k	2.5%
$35k–$50k	7.3%
$50k–$75k	13.0%
$75k–$100k	5.3%
$100k–$150k	18.1%
$150k–$200k	11.3%
$200k+	39.6%
Median income	$152,250

Housing

Home values

Under $50k 0.9%

$50k–$100k 0.2%

$100k–$150k 5.9%

$150k–$200k 19.9%

$200k–$300k 34.5%

$300k–$500k 34.2%

$500k–$1M 4.4%

Housing overview

Metric	Value
Median home value	$273,500
Median rent / month	$1,726
Owner occupied	94.6%
Renter occupied	5.4%
Vacant	2.8%
Single-family detached	95.6%
Large apartment buildings	0.0%
Mobile homes	3.0%
Median rooms	8.2
Avg household size (owned)	2.86

Year built

Era	%
2020 or later	0.0%
2010–2019	2.4%
2000–2009	17.0%
1990–1999	31.0%
1980–1989	7.9%
1970–1979	15.8%
1960–1969	3.9%
1950–1959	4.8%
1940–1949	5.8%
1939 or earlier	11.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.7%
2 bedrooms	3.6%
3 bedrooms	37.4%
4 bedrooms	46.1%
5+ bedrooms	12.2%

Vehicles per household

Vehicles	% of households
No vehicle	0.6%
1 vehicle	15.9%
2 vehicles	36.1%
3 or more	47.4%

Heating fuel

Fuel type	%
Utility gas	79.9%
Electricity	9.0%
Propane / LP gas	6.4%
Wood	3.1%
Solar	1.6%

Households & families

Household type	Count	%
Married-couple family	787	82.3%
Cohabiting couple	43	4.5%
Male householder, no spouse	65	6.8%
Female householder, no spouse	61	6.4%
Households with children under 18	242	25.3%
Households with seniors (65+)	300	31.4%
Average household size	2.80

Marital status

Status	Male	Female
Never married	26.8%	25.5%
Married	66.6%	66.4%
Separated	0.2%	0.0%
Widowed	1.3%	5.7%
Divorced	5.2%	2.4%

Education

Less than 9th grade 1.3%

Some HS, no diploma 1.8%

HS graduate 12.9%

Some college, no degree 20.0%

Associate's degree 8.4%

Bachelor's degree 30.4%

Graduate / professional 25.1%

Metric	%
HS diploma or higher	96.9%
Bachelor's or higher	55.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	17	2.6%
Kindergarten	38	5.9%
Elementary school	148	22.9%
High school	78	12.1%
College / grad school	366	56.6%

Employment

Industry of employment

Education & healthcare 17.6%

Professional & management 16.2%

Manufacturing 16.0%

Finance & real estate 9.4%

Arts, food & hospitality 8.6%

Information 7.6%

Public administration 6.8%

Other services 6.0%

Construction 4.0%

Retail trade 3.8%

Transportation & utilities 2.6%

Agriculture & mining 1.3%

Wholesale trade 0.1%

Occupation

Category	%
Management, business & arts	60.8%
Service	12.9%
Sales & office	9.4%
Natural resources & construction	4.2%
Production & transportation	12.7%

Employment type

Type	%
Private sector	83.6%
Government	12.9%
Self-employed	3.1%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	75.9%
Carpool	4.3%
Public transit	0.0%
Walk	0.4%
Work from home	18.1%
Other means	1.3%
Avg commute (minutes)	26.3

Poverty

All people 2.3%

Under 18 years 0.0%

18 and over 2.7%

Married-couple families 3.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	29.2%
Retirement income	26.6%
Supplemental Security	2.4%
Cash public assistance	4.9%
Food stamps / SNAP	4.9%

Health indicators

Condition	%
Obesity	36.4%
High blood pressure	32.0%
High cholesterol	33.8%
Diabetes	9.2%
Heart disease	5.7%
Stroke	2.6%
Asthma	9.3%
Arthritis	25.3%
Kidney disease	2.5%
Pulmonary disease	6.1%
Cancer	6.6%

Behavior / access	%
Smoking	15.9%
Binge drinking	15.6%
No physical activity	21.4%
Less than 7 hrs sleep	30.5%
Depression	17.1%
Fair or poor health	11.8%
Poor mental health	11.8%
Poor physical health	8.8%
No health insurance	9.0%
Visited doctor (checkup)	76.9%
Visited dentist	69.8%
Cholesterol screening	91.6%
Teeth loss	10.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	120	5.2%

Disability	%
Any disability	6.2%
Under 18	1.0%
18–64 years	4.5%
65 and over	16.8%

Health insurance coverage

Type	%
Private insurance	86.2%
Public insurance	23.2%
No insurance	2.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,542	94.8%
Spanish	8	0.3%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	8	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,648	98.8%
Born in same state	2,635	98.3%
Born in different state	2,022	75.4%
Foreign born	13	0.5%
Naturalized citizen	33	1.2%
Not a US citizen	31	93.9%

Ancestry

Ancestry	Count	%
Italian	620	23.1%
French	304	11.3%
Polish	80	3%
Arab	22	0.8%

Ancestry	Count	%
English	8	0.3%
Norwegian	7	0.3%
Irish	5	0.2%
Dutch	1	0%

Technology access

Metric	% of households
Computer access	35.7%
Internet access	97.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 61011

What city is ZIP code 61011 in?

ZIP code 61011 is primarily assigned to Caledonia, Illinois.

What county is ZIP code 61011 in?

ZIP code 61011 falls within Boone County, Illinois.

Is ZIP code 61011 mostly owner-occupied?

95% of occupied units in ZIP code 61011 are owner-occupied, well above the national average.

How educated is the population of ZIP code 61011?

56% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 61011?

The median household income in ZIP code 61011 is $152,250, above the national median of ~$75,000.

What is the population of ZIP code 61011?

ZIP code 61011 has an estimated population of 2,681 residents, with a density of 70 people per square mile.

What timezone is ZIP code 61011 in?

ZIP code 61011 observes the CST timezone.