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Illinois ZIP Codes
Wayne County
Geff, IL
62842
62842 ZIP Code — Geff, IL
Wayne County, Illinois
ZIP code 62842 is located in
Geff ,
Illinois ,
within Wayne County .
It covers approximately 45.64 square miles and serves a population of
673 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 618 .
About ZIP code 62842
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $98,000. Owner-occupancy is high at 88%, well above the national average.
Median household income is $56,875. 44% 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 24 minutes is near the national average.
College attainment at 20% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (21%) compared to national benchmarks.
Overall, ZIP code 62842 reflects a community defined by high homeownership and a significant Social Security-dependent population.
62842 ZIP code map
View map of 62842
Cities in ZIP code 62842
Below are the cities the US Postal Service accepts for ZIP code 62842. Using any city not on this list may result in mail delivery delays.
City
Status
Geff
Acceptable
Geff
Preferred
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
673
Population density
15 / sq mi
State FIPS
17
County FIPS
191
Geography
Land area
45.64 sq mi
Water area
0.01 sq mi
Latitude
38.4327
Longitude
-88.4199
Timezone
Central (CT)
Area code
618
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
59.6%
50.3%
37.2%
$50k – $100k
32.5%
35.1%
29.6%
$100k – $200k
6.7%
13.5%
24.4%
Over $200k
1.3%
1.1%
8.8%
Demographics & statistics
$56,875
Median household income
20.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 141 21.0%
18 and over 532 79.0%
65 and over 175 26.0%
Median age 43.0 years
Race & ethnicity
Group Count %
White 640 93.8%
Asian 18 2.6%
Hispanic or Latino 9 1.3%
Other race 9 1.3%
Two or more races 6 0.9%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
59.6%
50.3%
37.2%
$50k – $100k
32.5%
35.1%
29.6%
$100k – $200k
6.7%
13.5%
24.4%
Over $200k
1.3%
1.1%
8.8%
Range % of households
Under $10k 4.8%
$10k–$15k 4.5%
$15k–$25k 6.3%
$25k–$35k 5.6%
$35k–$50k 20.8%
$50k–$75k 20.8%
$75k–$100k 14.1%
$100k–$150k 5.9%
$150k–$200k 8.9%
$200k+ 8.2%
Median income $56,875
Housing
Housing overview
Metric Value
Median home value $98,000
Median rent / month $850
Owner occupied 87.7%
Renter occupied 12.3%
Vacant 13.2%
Single-family detached 66.8%
Large apartment buildings 0.0%
Mobile homes 32.6%
Median rooms 6.1
Avg household size (owned) 2.43
Year built
Era %
2020 or later 0.0%
2010–2019 8.4%
2000–2009 17.1%
1990–1999 9.0%
1980–1989 10.3%
1970–1979 17.4%
1960–1969 5.8%
1950–1959 3.2%
1940–1949 11.6%
1939 or earlier 17.1%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 1.0%
2 bedrooms 24.8%
3 bedrooms 62.3%
4 bedrooms 11.6%
5+ bedrooms 0.3%
Vehicles per household
Vehicles % of households
No vehicle 3.0%
1 vehicle 17.8%
2 vehicles 33.8%
3 or more 45.4%
Heating fuel
Fuel type %
Utility gas 33.8%
Electricity 18.6%
Propane / LP gas 36.8%
Wood 5.9%
Solar 4.8%
Households & families
Household type Count %
Married-couple family 171 63.6%
Cohabiting couple 8 3.0%
Male householder, no spouse 50 18.6%
Female householder, no spouse 40 14.9%
Households with children under 18 74 27.5%
Households with seniors (65+) 99 36.8%
Average household size 2.50
Marital status
Status Male Female
Never married 17.5% 19.2%
Married 68.4% 62.7%
Separated 0.0% 0.0%
Widowed 4.8% 9.1%
Divorced 9.3% 9.1%
Education
Some college, no degree
25.6%
Graduate / professional
6.5%
Metric %
HS diploma or higher 91.3%
Bachelor's or higher 20.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 11 7.9%
Kindergarten 12 8.6%
Elementary school 68 48.6%
High school 27 19.3%
College / grad school 22 15.7%
Employment
Industry of employment
Education & healthcare
34.4%
Public administration
8.8%
Arts, food & hospitality
7.4%
Professional & management
7.0%
Agriculture & mining
4.2%
Transportation & utilities
1.1%
Finance & real estate
0.4%
Occupation
Category %
Management, business & arts 41.8%
Service 15.8%
Sales & office 17.5%
Natural resources & construction 16.5%
Production & transportation 8.4%
Employment type
Type %
Private sector 72.3%
Government 21.4%
Self-employed 6.0%
Unpaid family workers 0.4%
Commute
Method %
Drive alone 79.7%
Carpool 13.8%
Public transit 0.4%
Walk 1.1%
Work from home 5.1%
Other means 0.0%
Avg commute (minutes) 24.0
Poverty
Married-couple families
2.3%
Female-led households
19.0%
Income support
Source % of households
Social Security 44.2%
Retirement income 30.1%
Supplemental Security 1.1%
Cash public assistance 0.0%
Food stamps / SNAP 8.6%
Health indicators
Condition %
Obesity 35.2%
High blood pressure 34.1%
High cholesterol 33.6%
Diabetes 10.3%
Heart disease 7.0%
Stroke 3.4%
Asthma 10.2%
Arthritis 27.8%
Kidney disease 3.0%
Pulmonary disease 8.4%
Cancer 6.9%
Behavior / access %
Smoking 21.2%
Binge drinking 15.6%
No physical activity 26.4%
Less than 7 hrs sleep 33.2%
Depression 19.0%
Fair or poor health 15.9%
Poor mental health 13.9%
Poor physical health 11.1%
No health insurance 11.6%
Visited doctor (checkup) 75.8%
Visited dentist 59.9%
Cholesterol screening 88.3%
Teeth loss 16.9%
Veterans & disability
Veterans Count %
Civilian veterans 39 7.3%
Disability %
Any disability 15.3%
Under 18 0.0%
18–64 years 14.0%
65 and over 30.3%
Health insurance coverage
Type %
Private insurance 71.3%
Public insurance 49.5%
No insurance 4.2%
Uninsured under 19 2.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 641 95.2%
Spanish 15 2.3%
Other Indo-European 9 1.4%
Asian & Pacific Islander 6 0.9%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 656 97.5%
Born in same state 635 94.4%
Born in different state 504 74.9%
Foreign born 21 3.1%
Naturalized citizen 17 2.5%
Not a US citizen 2 11.8%
Ancestry
Ancestry Count %
French 103 15.3%
Arab 58 8.6%
Italian 45 6.7%
Ancestry Count %
English 28 4.2%
Irish 5 0.7%
Dutch 2 0.3%
Technology access
Metric % of households
Computer access 40.0%
Internet access 93.7%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 62842
What city is ZIP code 62842 in?
ZIP code 62842 is primarily assigned to Geff, Illinois.
What county is ZIP code 62842 in?
ZIP code 62842 falls within Wayne County, Illinois.
Does ZIP code 62842 have an older population?
26% of residents in ZIP code 62842 are 65 or older, above the national average of ~17%.
Is ZIP code 62842 mostly owner-occupied?
88% of occupied units in ZIP code 62842 are owner-occupied, well above the national average.
Does ZIP code 62842 have a large retiree population?
44% of households in ZIP code 62842 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 62842?
The median home value in ZIP code 62842 is $98,000.
What timezone is ZIP code 62842 in?
ZIP code 62842 observes the CST timezone.
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