61088 ZIP Code — Winnebago, IL

Winnebago County, Illinois

ZIP code 61088 is located in Winnebago, Illinois, within Winnebago County. It covers approximately 56.57 square miles and serves a population of 6,094 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 815.

About ZIP code 61088

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $183,800. Owner-occupancy is high at 90%, well above the national average.

The gap between median ($93,507) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 3% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 28 minutes is near the national average.

Educational attainment is near the national average, with 28% of residents holding a bachelor's degree or higher.

Overall, ZIP code 61088 reflects a community defined by high homeownership and a significant Social Security-dependent population.

6,094

population

56.57

sq mi land

Standard

ZIP type

Central (CT)

timezone

61088 ZIP code map

Cities in ZIP code 61088

Below are the cities the US Postal Service accepts for ZIP code 61088. Using any city not on this list may result in mail delivery delays.

City	Status
Winnebago	Preferred

Nearby ZIP codes

61063 Pecatonica (3.5 mi) 61101 Rockford (6.5 mi) 61024 Durand (8.1 mi) 61102 Rockford (8.5 mi) 61103 Rockford (10.3 mi) 61067 Ridott (10.3 mi) 61104 Rockford (10.5 mi) 61072 Rockton (10.7 mi) 61019 Davis (11 mi) 61047 Leaf River (12.2 mi) 61039 German Valley (12.4 mi) 61010 Byron (12.6 mi)

Demographics updated 05/2026

Population
Total population	6,094
Population density	108 / sq mi
State FIPS	17
County FIPS	201

Geography
Land area	56.57 sq mi
Water area	0.14 sq mi
Latitude	42.3132
Longitude	-89.2722
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	26.1%	45.2%	37.2%
$50k – $100k	33.1%	31.4%	29.6%
$100k – $200k	34.6%	19.5%	24.4%
Over $200k	6.1%	4.0%	8.8%

Demographics & statistics

6,094

Population

108

People per sq mi

46.0

Median age

$93,507

Median household income

$46,300

Per capita income

$183,800

Median home value

$1,115

Median monthly rent

89.7%

Home ownership

3.1%

Poverty rate

3.0%

Unemployment

2,215

Housing units

28.2%

Bachelor's or higher

Age distribution

Male Female

137

Under 5

130

159

5–9

151

285

10–14

271

211

15–19

201

127

20–24

121

228

25–34

218

358

35–44

341

401

45–54

382

349

55–59

333

270

60–64

258

327

65–74

312

203

75–84

194

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,447	23.7%
18 and over	4,647	76.3%
65 and over	1,163	19.1%
Median age	46.0 years

Race & ethnicity

White 94.9%

Two or more races 1.7%

Hispanic or Latino 1.2%

Asian 0.9%

Black or African American 0.8%

Other race 0.5%

American Indian / Alaska Native 0.1%

Group	Count	%
White	5,848	94.9%
Two or more races	102	1.7%
Hispanic or Latino	71	1.2%
Asian	56	0.9%
Black or African American	51	0.8%
Other race	33	0.5%
American Indian / Alaska Native	4	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	26.1%	45.2%	37.2%
$50k – $100k	33.1%	31.4%	29.6%
$100k – $200k	34.6%	19.5%	24.4%
Over $200k	6.1%	4.0%	8.8%

Under $10k 3.2%

$10k–$15k 0.4%

$15k–$25k 4.8%

$25k–$35k 3.6%

$35k–$50k 11.7%

$50k–$75k 15.8%

$75k–$100k 14.5%

$100k–$150k 19.0%

$150k–$200k 15.8%

$200k+ 11.1%

Range	% of households
Under $10k	3.2%
$10k–$15k	0.4%
$15k–$25k	4.8%
$25k–$35k	3.6%
$35k–$50k	11.7%
$50k–$75k	15.8%
$75k–$100k	14.5%
$100k–$150k	19.0%
$150k–$200k	15.8%
$200k+	11.1%
Median income	$93,507

Housing

Home values

Under $50k 1.4%

$50k–$100k 5.8%

$100k–$150k 19.8%

$150k–$200k 29.5%

$200k–$300k 29.4%

$300k–$500k 10.9%

$500k–$1M 3.1%

Housing overview

Metric	Value
Median home value	$183,800
Median rent / month	$1,115
Owner occupied	89.7%
Renter occupied	10.3%
Vacant	4.4%
Single-family detached	92.0%
Large apartment buildings	1.7%
Mobile homes	0.0%
Median rooms	6.8
Avg household size (owned)	2.68

Year built

Era	%
2020 or later	0.0%
2010–2019	2.3%
2000–2009	26.5%
1990–1999	20.8%
1980–1989	7.2%
1970–1979	11.8%
1960–1969	6.0%
1950–1959	10.1%
1940–1949	5.1%
1939 or earlier	10.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	2.4%
2 bedrooms	13.6%
3 bedrooms	51.4%
4 bedrooms	25.2%
5+ bedrooms	7.4%

Vehicles per household

Vehicles	% of households
No vehicle	1.7%
1 vehicle	18.3%
2 vehicles	40.2%
3 or more	39.8%

Heating fuel

Fuel type	%
Utility gas	75.6%
Electricity	11.0%
Propane / LP gas	11.7%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	1,609	68.5%
Cohabiting couple	142	6.0%
Male householder, no spouse	171	7.3%
Female householder, no spouse	427	18.2%
Households with children under 18	703	29.9%
Households with seniors (65+)	782	33.3%
Average household size	2.59

Marital status

Status	Male	Female
Never married	23.3%	18.9%
Married	68.5%	63.6%
Separated	0.3%	0.5%
Widowed	3.0%	10.4%
Divorced	4.9%	6.5%

Education

Less than 9th grade 2.7%

Some HS, no diploma 2.5%

HS graduate 27.6%

Some college, no degree 23.9%

Associate's degree 15.1%

Bachelor's degree 16.3%

Graduate / professional 11.8%

Metric	%
HS diploma or higher	94.8%
Bachelor's or higher	28.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	35	2.6%
Kindergarten	35	2.6%
Elementary school	753	56.1%
High school	329	24.5%
College / grad school	190	14.2%

Employment

Industry of employment

Education & healthcare 23.8%

Manufacturing 21.8%

Retail trade 10.1%

Professional & management 8.0%

Arts, food & hospitality 7.4%

Construction 6.6%

Transportation & utilities 5.0%

Wholesale trade 4.8%

Finance & real estate 3.8%

Other services 3.4%

Agriculture & mining 2.9%

Public administration 2.2%

Information 0.1%

Occupation

Category	%
Management, business & arts	39.3%
Service	13.0%
Sales & office	21.7%
Natural resources & construction	12.7%
Production & transportation	13.3%

Employment type

Type	%
Private sector	84.3%
Government	11.6%
Self-employed	4.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	84.7%
Carpool	4.6%
Public transit	0.0%
Walk	0.0%
Work from home	9.6%
Other means	1.1%
Avg commute (minutes)	27.6

Poverty

All people 3.1%

Under 18 years 4.0%

18 and over 2.8%

Married-couple families 1.1%

Female-led households 23.3%

Income support

Source	% of households
Social Security	35.4%
Retirement income	32.3%
Supplemental Security	2.2%
Cash public assistance	1.7%
Food stamps / SNAP	4.6%

Health indicators

Condition	%
Obesity	38.5%
High blood pressure	31.6%
High cholesterol	32.2%
Diabetes	8.7%
Heart disease	5.5%
Stroke	2.5%
Asthma	9.2%
Arthritis	24.7%
Kidney disease	2.5%
Pulmonary disease	5.9%
Cancer	6.5%

Behavior / access	%
Smoking	16.4%
Binge drinking	16.7%
No physical activity	21.1%
Less than 7 hrs sleep	30.4%
Depression	17.9%
Fair or poor health	11.3%
Poor mental health	12.3%
Poor physical health	8.6%
No health insurance	8.6%
Visited doctor (checkup)	76.4%
Visited dentist	70.2%
Cholesterol screening	91.1%
Teeth loss	10.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	379	8.2%

Disability	%
Any disability	11.9%
Under 18	3.5%
18–64 years	5.4%
65 and over	41.8%

Health insurance coverage

Type	%
Private insurance	86.7%
Public insurance	28.3%
No insurance	2.3%
Uninsured under 19	3.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,827	95.6%
Spanish	5	0.1%
Other Indo-European	5	0.1%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	5,995	98.4%
Born in same state	5,944	97.5%
Born in different state	4,426	72.6%
Foreign born	51	0.8%
Naturalized citizen	99	1.6%
Not a US citizen	92	92.9%

Ancestry

Ancestry	Count	%
Italian	1,203	19.7%
French	889	14.6%
Arab	283	4.6%
English	230	3.8%

Ancestry	Count	%
Polish	95	1.6%
Norwegian	33	0.5%
Dutch	5	0.1%
German	4	0.1%

Technology access

Metric	% of households
Computer access	38.5%
Internet access	95.8%

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

Frequently asked questions about ZIP code 61088

What city is ZIP code 61088 in?

ZIP code 61088 is primarily assigned to Winnebago, Illinois.

What county is ZIP code 61088 in?

ZIP code 61088 falls within Winnebago County, Illinois.

Is ZIP code 61088 mostly owner-occupied?

90% of occupied units in ZIP code 61088 are owner-occupied, well above the national average.

Does ZIP code 61088 have a large retiree population?

35% of households in ZIP code 61088 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 61088?

The median home value in ZIP code 61088 is $183,800.

What is the population of ZIP code 61088?

ZIP code 61088 has an estimated population of 6,094 residents, with a density of 108 people per square mile.

What timezone is ZIP code 61088 in?

ZIP code 61088 observes the CST timezone.