61243 ZIP Code — Deer Grove, IL

Whiteside County, Illinois

ZIP code 61243 is located in Deer Grove, Illinois, within Whiteside County. It covers approximately 25.67 square miles and serves a population of 277 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 815.

About ZIP code 61243

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $310,000. Owner-occupancy is high at 86%, well above the national average.

Median household income is $126,563. The poverty rate of 2% is below the national average. 33% 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. An above-average commute of 38 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 31% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

Overall, ZIP code 61243 reflects a community defined by high homeownership and a significant Social Security-dependent population.

277

population

25.67

sq mi land

Standard

ZIP type

Central (CT)

timezone

61243 ZIP code map

Cities in ZIP code 61243

Below are the cities the US Postal Service accepts for ZIP code 61243. Using any city not on this list may result in mail delivery delays.

City	Status
Deer Grove	Preferred

Nearby ZIP codes

61283 Tampico (5.1 mi) 61376 Walnut (6.2 mi) 61071 Rock Falls (6.6 mi) 61042 Harmon (8.4 mi) 61277 Prophetstown (13.4 mi) 61081 Sterling (13.8 mi) 61261 Lyndon (13.9 mi) 61349 Ohio (13.9 mi) 61361 Sheffield (14.8 mi) 61379 Wyanet (16.3 mi) 61344 Mineral (17.1 mi) 61021 Dixon (17.3 mi)

Demographics updated 05/2026

Population
Total population	277
Population density	11 / sq mi
State FIPS	17
County FIPS	195

Geography
Land area	25.67 sq mi
Water area	0.00 sq mi
Latitude	41.6279
Longitude	-89.6896
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	33.3%	43.7%	37.2%
$50k – $100k	15.7%	32.3%	29.6%
$100k – $200k	51.0%	20.7%	24.4%
Over $200k	0.0%	3.3%	8.8%

Demographics & statistics

277

Population

People per sq mi

49.9

Median age

$126,563

Median household income

$54,553

Per capita income

$310,000

Median home value

Median monthly rent

86.0%

Home ownership

2.2%

Poverty rate

3.2%

Unemployment

101

Housing units

31.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	26	9.4%
18 and over	251	90.6%
65 and over	42	15.2%
Median age	49.9 years

Race & ethnicity

White 96.5%

Hispanic or Latino 1.8%

Two or more races 1.8%

Group	Count	%
White	272	96.5%
Hispanic or Latino	5	1.8%
Two or more races	5	1.8%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	33.3%	43.7%	37.2%
$50k – $100k	15.7%	32.3%	29.6%
$100k – $200k	51.0%	20.7%	24.4%
Over $200k	0.0%	3.3%	8.8%

$10k–$15k 1.8%

$25k–$35k 6.1%

$35k–$50k 14.0%

$50k–$75k 8.8%

$75k–$100k 8.8%

$100k–$150k 34.2%

$150k–$200k 17.5%

$200k+ 8.8%

Range	% of households
$10k–$15k	1.8%
$25k–$35k	6.1%
$35k–$50k	14.0%
$50k–$75k	8.8%
$75k–$100k	8.8%
$100k–$150k	34.2%
$150k–$200k	17.5%
$200k+	8.8%
Median income	$126,563

Housing

Home values

Under $50k 2.0%

$50k–$100k 4.1%

$100k–$150k 22.4%

$200k–$300k 17.3%

$300k–$500k 54.1%

Housing overview

Metric	Value
Median home value	$310,000
Median rent / month	$0
Owner occupied	86.0%
Renter occupied	14.0%
Vacant	2.6%
Single-family detached	98.3%
Large apartment buildings	0.0%
Mobile homes	1.7%
Median rooms	7.4
Avg household size (owned)	2.45

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	20.5%
1990–1999	0.0%
1980–1989	8.5%
1970–1979	2.6%
1960–1969	15.4%
1950–1959	16.2%
1940–1949	11.1%
1939 or earlier	25.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	17.1%
3 bedrooms	58.1%
4 bedrooms	13.7%
5+ bedrooms	11.1%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	18.4%
2 vehicles	28.9%
3 or more	52.6%

Heating fuel

Fuel type	%
Utility gas	43.9%
Electricity	19.3%
Propane / LP gas	36.8%

Households & families

Household type	Count	%
Married-couple family	66	57.9%
Cohabiting couple	19	16.7%
Male householder, no spouse	21	18.4%
Female householder, no spouse	8	7.0%
Households with children under 18	22	19.3%
Households with seniors (65+)	35	30.7%
Average household size	2.43

Marital status

Status	Male	Female
Never married	20.0%	21.4%
Married	57.1%	50.0%
Separated	12.1%	0.0%
Widowed	0.7%	5.6%
Divorced	10.0%	23.0%

Education

Less than 9th grade 3.1%

Some HS, no diploma 0.9%

HS graduate 26.4%

Some college, no degree 30.0%

Associate's degree 8.4%

Bachelor's degree 26.0%

Graduate / professional 5.3%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	31.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	1	2.1%
Kindergarten	0	0.0%
Elementary school	10	21.3%
High school	18	38.3%
College / grad school	18	38.3%

Employment

Industry of employment

Education & healthcare 26.1%

Construction 21.1%

Other services 14.4%

Finance & real estate 12.8%

Public administration 6.7%

Professional & management 4.4%

Agriculture & mining 3.9%

Wholesale trade 3.9%

Retail trade 3.9%

Transportation & utilities 2.2%

Manufacturing 0.6%

Occupation

Category	%
Management, business & arts	53.9%
Service	18.9%
Sales & office	10.6%
Natural resources & construction	0.6%
Production & transportation	16.1%

Employment type

Type	%
Private sector	77.2%
Government	18.9%
Self-employed	3.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.4%
Carpool	6.2%
Public transit	0.0%
Walk	0.0%
Work from home	12.4%
Other means	0.0%
Avg commute (minutes)	37.8

Poverty

All people 2.2%

Under 18 years 11.1%

18 and over 1.6%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	33.3%
Retirement income	28.1%
Supplemental Security	0.9%
Cash public assistance	0.0%
Food stamps / SNAP	1.8%

Health indicators

Condition	%
Obesity	38.2%
High blood pressure	34.5%
High cholesterol	35.4%
Diabetes	10.6%
Heart disease	6.9%
Stroke	3.3%
Asthma	10.0%
Arthritis	29.4%
Kidney disease	3.0%
Pulmonary disease	8.2%
Cancer	7.0%

Behavior / access	%
Smoking	20.8%
Binge drinking	15.4%
No physical activity	25.7%
Less than 7 hrs sleep	33.6%
Depression	18.1%
Fair or poor health	15.5%
Poor mental health	13.4%
Poor physical health	11.1%
No health insurance	11.3%
Visited doctor (checkup)	77.2%
Visited dentist	61.8%
Cholesterol screening	90.2%
Teeth loss	16.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	21	8.4%

Disability	%
Any disability	19.1%
Under 18	0.0%
18–64 years	14.8%
65 and over	52.4%

Health insurance coverage

Type	%
Private insurance	73.6%
Public insurance	22.4%
No insurance	11.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	276	99.6%
Spanish	6	2.2%
Other Indo-European	0	0.0%
Asian & Pacific Islander	6	2.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	277	100.0%
Born in same state	277	100.0%
Born in different state	261	94.2%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	96	34.7%
Polish	40	14.4%
French	20	7.2%

Ancestry	Count	%
English	14	5.1%
German	3	1.1%

Technology access

Metric	% of households
Computer access	41.2%
Internet access	76.3%

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

Frequently asked questions about ZIP code 61243

What city is ZIP code 61243 in?

ZIP code 61243 is primarily assigned to Deer Grove, Illinois.

What county is ZIP code 61243 in?

ZIP code 61243 falls within Whiteside County, Illinois.

Is ZIP code 61243 mostly owner-occupied?

86% of occupied units in ZIP code 61243 are owner-occupied, well above the national average.

What is the median household income in ZIP code 61243?

The median household income in ZIP code 61243 is $126,563, above the national median of ~$75,000.

What is the typical home value in ZIP code 61243?

The median home value in ZIP code 61243 is $310,000.

What is the population of ZIP code 61243?

ZIP code 61243 has an estimated population of 277 residents, with a density of 11 people per square mile.

What timezone is ZIP code 61243 in?

ZIP code 61243 observes the CST timezone.