Dahlgren ZIP Codes — Hamilton County, IL

There is one unique ZIP code in Dahlgren, Illinois and it is 62828. Area code: 618.
1
ZIP codes
82.72
sq mi land
0.11
sq mi water
618
area code
Dahlgren, IL ZIP code map

About Dahlgren, IL

Dahlgren, Illinois, is a small but charming city located in Hamilton County. With its quaint atmosphere and friendly residents, it offers a glimpse into the heart of rural Midwestern life. The city's compact size and serene surroundings make it an ideal spot for those seeking a peaceful lifestyle away from the hustle and bustle of urban areas.

Location & geography

Dahlgren is situated in the southern part of Illinois, surrounded by lush landscapes and open farmland. It is located near several other cities, including McLeansboro approximately 12 miles to the north, and Fairfield about 19 miles to the east. The city spans a total land area of 82.72 square miles, with a small water area of 0.11 square miles, making it predominantly land-based.

Community & economy

The character of Dahlgren is deeply rooted in community values and agricultural traditions. Many residents are involved in farming and related industries, which play a significant role in the local economy. Daily life in Dahlgren is relaxed, with a strong sense of community fostered by local events and gatherings.

Transportation

Transportation in Dahlgren is facilitated by several local roads and highways, including Illinois Route 142, which provides access to neighboring towns. The nearest major airport is Greater Peoria Regional Airport, located about 75 miles to the north. Currently, public transit options are limited, making personal vehicles the primary mode of transportation.

History

Dahlgren was founded in the late 19th century and has a rich history tied to agriculture and local industry. Throughout its development, the city has primarily relied on farming as a key industry while celebrating significant community events that enhance its cultural heritage. Over the years, Dahlgren has maintained its small-town charm while adapting to the changes around it.

Did you know?

One surprising fact about Dahlgren is that it has only one ZIP code, 62828, which serves as a marker of its size and community closeness. Additionally, Dahlgren is characterized by its expansive rural landscapes, providing a peaceful retreat for nature lovers and outdoor enthusiasts.

ZIP codes for Dahlgren, IL (1)
ZIP code City County Map
62828 Dahlgren Hamilton View map

Demographics & statistics

1,359
Population
40.5
Median age
$71,250
Median household income
$28,644
Per capita income
$128,800
Median home value
$693
Median monthly rent
86.1%
Home ownership
14.5%
Poverty rate
6.3%
Unemployment
519
Housing units
17.0%
Bachelor's or higher

Age distribution

Male Female
85
Under 5
83
65
5–9
64
30
10–14
30
40
15–19
40
38
20–24
37
53
25–34
53
61
35–44
60
93
45–54
92
48
55–59
47
45
60–64
44
41
65–74
41
59
75–84
59
26
85+
25
← Male
Female →

Age summary

GroupCount%
Under 1840930.1%
18 and over95069.9%
65 and over25118.5%
Median age40.5 years

Race & ethnicity

White 99.3%
Asian 0.7%
GroupCount%
White1,35099.3%
Asian90.7%

Household income

Under $10k 6.0%
$10k–$15k 5.6%
$15k–$25k 4.4%
$25k–$35k 2.6%
$35k–$50k 17.5%
$50k–$75k 15.3%
$75k–$100k 16.1%
$100k–$150k 26.2%
$150k–$200k 4.4%
$200k+ 2.2%
Range% of households
Under $10k6.0%
$10k–$15k5.6%
$15k–$25k4.4%
$25k–$35k2.6%
$35k–$50k17.5%
$50k–$75k15.3%
$75k–$100k16.1%
$100k–$150k26.2%
$150k–$200k4.4%
$200k+2.2%
Median income$71,250

Housing

Home values

Under $50k 22.4%
$50k–$100k 21.2%
$100k–$150k 19.1%
$150k–$200k 10.4%
$200k–$300k 17.7%
$300k–$500k 4.8%
$500k–$1M 4.1%
$1M+ 0.2%

Housing overview

MetricValue
Median home value$128,800
Median rent / month$693
Owner occupied86.1%
Renter occupied13.9%
Vacant14.4%
Single-family detached82.0%
Large apartment buildings0.0%
Mobile homes17.8%
Median rooms5.7
Avg household size (owned)2.71

Year built

Era%
2020 or later0.7%
2010–20199.8%
2000–20097.1%
1990–199911.4%
1980–198914.6%
1970–197913.1%
1960–19698.8%
1950–19590.5%
1940–194910.5%
1939 or earlier23.4%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom4.1%
2 bedrooms29.5%
3 bedrooms55.0%
4 bedrooms9.3%
5+ bedrooms2.0%

Vehicles per household

Vehicles% of households
No vehicle2.2%
1 vehicle19.0%
2 vehicles42.3%
3 or more36.5%

Heating fuel

Fuel type%
Utility gas34.9%
Electricity15.3%
Propane / LP gas42.9%
Wood1.8%

Households & families

Household typeCount%
Married-couple family24849.2%
Cohabiting couple244.8%
Male householder, no spouse12725.2%
Female householder, no spouse10520.8%
Households with children under 1818837.3%
Households with seniors (65+)16432.5%
Average household size2.70

Marital status

StatusMaleFemale
Never married22.9%23.0%
Married59.2%50.4%
Separated0.0%2.8%
Widowed5.8%13.0%
Divorced12.0%10.9%

Education

Less than 9th grade 5.9%
Some HS, no diploma 10.0%
HS graduate 33.6%
Some college, no degree 13.7%
Associate's degree 19.7%
Bachelor's degree 11.1%
Graduate / professional 5.9%
Metric%
HS diploma or higher84.1%
Bachelor's or higher17.0%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool144.7%
Kindergarten186.1%
Elementary school18361.8%
High school3210.8%
College / grad school4916.6%

Employment

Industry of employment

Education & healthcare 19.1%
Manufacturing 18.7%
Agriculture & mining 12.7%
Wholesale trade 11.8%
Finance & real estate 8.9%
Retail trade 6.5%
Professional & management 5.5%
Arts, food & hospitality 5.1%
Public administration 4.2%
Transportation & utilities 3.1%
Construction 2.7%
Other services 1.3%
Information 0.4%

Occupation

Category%
Management, business & arts35.1%
Service8.7%
Sales & office22.4%
Natural resources & construction15.3%
Production & transportation18.5%

Employment type

Type%
Private sector79.1%
Government11.8%
Self-employed9.1%
Unpaid family workers0.0%

Commute

Method%
Drive alone88.5%
Carpool2.4%
Public transit0.4%
Walk0.0%
Other means0.0%
Avg commute (minutes)23.4

Poverty

All people 14.5%
Under 18 years 24.1%
18 and over 10.4%
Married-couple families 2.0%
Female-led households 56.6%

Income support

Source% of households
Social Security34.1%
Retirement income26.4%
Supplemental Security2.6%
Cash public assistance0.0%
Food stamps / SNAP20.0%

Health indicators

Condition%
High blood pressure35.4%
High cholesterol35.1%
Heart disease7.2%
Stroke3.4%
Asthma10.1%
Arthritis28.9%
Kidney disease3.1%
Pulmonary disease8.3%
Cancer7.4%
Behavior / access%
Binge drinking14.8%
No physical activity25.7%
Less than 7 hrs sleep32.1%
Fair or poor health15.5%
Poor mental health13.3%
Poor physical health10.9%
No health insurance10.9%
Visited doctor (checkup)76.9%
Visited dentist62.7%
Cholesterol screening89.9%
Teeth loss15.3%

Veterans & disability

VeteransCount%
Civilian veterans808.4%
Disability%
Any disability18.4%
Under 182.7%
18–64 years14.2%
65 and over55.8%

Health insurance coverage

Type%
Private insurance71.7%
Public insurance38.9%
Uninsured under 190.7%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only1,19187.6%
Spanish90.8%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages90.8%

Place of birth & citizenship

OriginCount%
Native born (US)1,35399.6%
Born in same state1,35399.6%
Born in different state1,09080.2%
Foreign born00.0%
Naturalized citizen60.4%
Not a US citizen6100.0%

Ancestry

AncestryCount%
Italian26019.1%
French19414.3%
AncestryCount%
Arab15511.4%
Polish40.3%

Technology access

Metric% of households
Computer access37.1%
Internet access88.3%

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

Frequently asked questions
What ZIP codes does Dahlgren, IL have?
Dahlgren, IL has one ZIP code: 62828. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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