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Illinois ZIP Codes
Johnson County
Grantsburg, IL
62943
62943 ZIP Code — Grantsburg, IL
Johnson County, Illinois
ZIP code 62943 is located in
Grantsburg ,
Illinois ,
within Johnson County .
It covers approximately 37.52 square miles and serves a population of
312 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 618 .
About ZIP code 62943
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $119,400. Owner-occupancy is high at 87%, well above the national average.
Median household income is $79,423. The poverty rate of 4% is below the national average. SNAP benefit usage at 21% of households reflects economic stress in the area.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. Remote work is prevalent — 33% of workers work from home.
College attainment at 6% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (23%) compared to national benchmarks.
Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%; and disability rates above the national average at 28%.
Overall, ZIP code 62943 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, a high rate of remote workers, and elevated reliance on food assistance.
62943 ZIP code map
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Cities in ZIP code 62943
Below are the cities the US Postal Service accepts for ZIP code 62943. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
312
Population density
8 / sq mi
State FIPS
17
County FIPS
087
Geography
Land area
37.52 sq mi
Water area
0.35 sq mi
Latitude
37.3593
Longitude
-88.7651
Timezone
Central (CT)
Area code
618
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
37.7%
45.0%
37.2%
$50k – $100k
46.2%
34.7%
29.6%
$100k – $200k
16.2%
18.1%
24.4%
Over $200k
0.0%
2.3%
8.8%
Demographics & statistics
$79,423
Median household income
$119,400
Median home value
Age distribution
Age summary
Group Count %
Under 18 95 30.4%
18 and over 217 69.6%
65 and over 31 9.9%
Median age 35.1 years
Race & ethnicity
Group Count %
White 251 68%
Two or more races 61 16.5%
Hispanic or Latino 57 15.4%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
37.7%
45.0%
37.2%
$50k – $100k
46.2%
34.7%
29.6%
$100k – $200k
16.2%
18.1%
24.4%
Over $200k
0.0%
2.3%
8.8%
Range % of households
Under $10k 4.6%
$10k–$15k 2.8%
$15k–$25k 13.0%
$25k–$35k 4.6%
$35k–$50k 5.6%
$50k–$75k 10.2%
$75k–$100k 33.3%
$100k–$150k 25.9%
Median income $79,423
Housing
Housing overview
Metric Value
Median home value $119,400
Median rent / month $0
Owner occupied 87.0%
Renter occupied 13.0%
Vacant 41.6%
Single-family detached 69.2%
Large apartment buildings 0.0%
Mobile homes 30.8%
Median rooms 5.3
Avg household size (owned) 3.17
Year built
Era %
2020 or later 0.0%
2010–2019 7.0%
2000–2009 11.9%
1990–1999 29.7%
1980–1989 0.5%
1970–1979 10.8%
1960–1969 6.5%
1950–1959 5.9%
1940–1949 24.9%
1939 or earlier 2.7%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.0%
2 bedrooms 21.1%
3 bedrooms 65.9%
4 bedrooms 13.0%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 13.9%
1 vehicle 0.0%
2 vehicles 59.3%
3 or more 26.9%
Heating fuel
Fuel type %
Utility gas 9.3%
Electricity 30.6%
Propane / LP gas 32.4%
Fuel oil 2.8%
Wood 13.0%
No fuel used 12.0%
Households & families
Household type Count %
Married-couple family 74 68.5%
Cohabiting couple 16 14.8%
Male householder, no spouse 14 13.0%
Female householder, no spouse 4 3.7%
Households with children under 18 50 46.3%
Households with seniors (65+) 24 22.2%
Average household size 2.89
Marital status
Status Male Female
Never married 34.4% 25.2%
Married 54.4% 58.0%
Separated 2.4% 13.7%
Widowed 0.0% 0.0%
Divorced 8.8% 3.1%
Education
Some HS, no diploma
22.7%
Some college, no degree
16.0%
Graduate / professional
0.0%
Metric %
HS diploma or higher 77.3%
Bachelor's or higher 6.2%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 10 10.2%
Elementary school 37 37.8%
High school 39 39.8%
College / grad school 12 12.2%
Employment
Industry of employment
Education & healthcare
23.7%
Public administration
23.1%
Agriculture & mining
17.9%
Transportation & utilities
7.1%
Occupation
Category %
Management, business & arts 38.5%
Service 34.6%
Sales & office 7.1%
Natural resources & construction 7.7%
Production & transportation 12.2%
Employment type
Type %
Private sector 67.3%
Government 32.7%
Self-employed 0.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 53.0%
Carpool 14.2%
Public transit 0.0%
Walk 0.0%
Work from home 32.8%
Other means 0.0%
Avg commute (minutes) 0.0
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households
Social Security 25.9%
Retirement income 8.3%
Supplemental Security 12.0%
Cash public assistance 2.8%
Food stamps / SNAP 21.3%
Health indicators
Condition %
Obesity 38.4%
High blood pressure 38.6%
High cholesterol 37.2%
Diabetes 13.0%
Heart disease 8.9%
Stroke 4.3%
Asthma 10.5%
Arthritis 32.3%
Kidney disease 3.7%
Pulmonary disease 10.7%
Cancer 7.8%
Behavior / access %
Smoking 22.8%
Binge drinking 14.0%
No physical activity 28.7%
Less than 7 hrs sleep 33.1%
Depression 19.0%
Fair or poor health 18.9%
Poor mental health 13.7%
Poor physical health 13.1%
No health insurance 11.4%
Visited doctor (checkup) 77.9%
Visited dentist 58.8%
Cholesterol screening 89.8%
Teeth loss 18.9%
Veterans & disability
Veterans Count %
Civilian veterans 26 12.0%
Disability %
Any disability 27.6%
Under 18 0.0%
18–64 years 33.9%
65 and over 74.2%
Health insurance coverage
Type %
Private insurance 68.6%
Public insurance 41.0%
No insurance 1.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 303 97.1%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 309 99.0%
Born in same state 309 99.0%
Born in different state 113 36.2%
Foreign born 0 0.0%
Naturalized citizen 3 1.0%
Not a US citizen 3 100.0%
Ancestry
Ancestry Count %
French 33 10.6%
Arab 31 9.9%
Ancestry Count %
Italian 13 4.2%
Technology access
Metric % of households
Computer access 34.6%
Internet access 86.1%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 62943
What city is ZIP code 62943 in?
ZIP code 62943 is primarily assigned to Grantsburg, Illinois.
What county is ZIP code 62943 in?
ZIP code 62943 falls within Johnson County, Illinois.
Is ZIP code 62943 family-oriented?
30% of residents in ZIP code 62943 are under 18, reflecting a younger, family-oriented community.
How educated is the population of ZIP code 62943?
6% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
Is ZIP code 62943 mostly owner-occupied?
87% of occupied units in ZIP code 62943 are owner-occupied, well above the national average.
Does ZIP code 62943 have a large veteran population?
12% of civilians in ZIP code 62943 are veterans, above the national average of ~7%.
What timezone is ZIP code 62943 in?
ZIP code 62943 observes the CST timezone.
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