Carthage ZIP Codes — Hancock County, IL

There is one unique ZIP code in Carthage, Illinois and it is 62321. Area code: 217.

ZIP codes

167.62

sq mi land

0.21

sq mi water

217

area code

Carthage, IL ZIP code map

About Carthage, IL

Carthage, Illinois, is a charming city located in Hancock County, known for its rich history and vibrant community. With a unique blend of small-town charm and modern amenities, Carthage offers residents and visitors a welcoming atmosphere. The city is well-regarded for its historic sites and local culture, making it a delightful place to explore.

Location & geography

Carthage is situated in the western part of Illinois, approximately 30 miles southwest of Quincy and 40 miles northeast of Keokuk, Iowa. The total land area of the city is 167.62 square miles, with a small water area of 0.21 square miles. The terrain is characteristically flat with fields and woodlands surrounding the city, providing a picturesque landscape.

Community & economy

Carthage has a strong sense of community and is characterized by friendly residents who take pride in their city. The local economy is driven by agriculture, retail, and small businesses, contributing to a diverse employment landscape. Daily life here includes community events, outdoor activities, and plenty of opportunities for residents to connect with neighbors.

Transportation

Major transportation routes include Illinois Route 9 and Illinois Route 94, which facilitate travel to and from surrounding regions. The nearest major airport is the Quincy Regional Airport located approximately 30 miles away. Public transit options are limited, but residents often rely on personal vehicles for commuting.

History

Carthage was founded in the early 1830s and has a rich history tied to the westward expansion of the United States. The city was once known for its brick manufacturing industry, which played a significant role in its economic development. Notable events in its history include the infamous 1846 murder of Joseph Smith, the founder of the Mormon Church, by a mob in nearby Nauvoo.

Did you know?

One surprising fact about Carthage is that it was once the headquarters of the Nauvoo Legion, a militia formed to protect settlers in the area. Additionally, the city is the birthplace of several notable figures, including prominent politicians and educators.

ZIP codes for Carthage, IL (1)

ZIP code	City	County	Map
62321	Carthage	Hancock	View map

Demographics & statistics

3,717

Population

49.7

Median age

$76,635

Median household income

$41,849

Per capita income

$119,800

Median home value

$675

Median monthly rent

80.7%

Home ownership

9.8%

Poverty rate

2.0%

Unemployment

1,659

Housing units

34.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

133

10–14

117

119

15–19

104

20–24

253

25–34

221

224

35–44

196

193

45–54

169

55–59

149

182

60–64

159

273

65–74

240

165

75–84

145

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	617	16.6%
18 and over	3,100	83.4%
65 and over	949	25.5%
Median age	49.7 years

Race & ethnicity

White 89.5%

Hispanic or Latino 4%

Two or more races 3.5%

Other race 1.7%

Black or African American 0.7%

Asian 0.4%

American Indian / Alaska Native 0.3%

Group	Count	%
White	3,463	89.5%
Hispanic or Latino	154	4%
Two or more races	137	3.5%
Other race	64	1.7%
Black or African American	26	0.7%
Asian	17	0.4%
American Indian / Alaska Native	10	0.3%

Household income

Under $10k 3.9%

$10k–$15k 2.3%

$15k–$25k 6.2%

$25k–$35k 6.3%

$35k–$50k 12.9%

$50k–$75k 16.9%

$75k–$100k 17.4%

$100k–$150k 19.0%

$150k–$200k 7.4%

$200k+ 7.7%

Range	% of households
Under $10k	3.9%
$10k–$15k	2.3%
$15k–$25k	6.2%
$25k–$35k	6.3%
$35k–$50k	12.9%
$50k–$75k	16.9%
$75k–$100k	17.4%
$100k–$150k	19.0%
$150k–$200k	7.4%
$200k+	7.7%
Median income	$76,635

Housing

Home values

Under $50k 3.3%

$50k–$100k 34.8%

$100k–$150k 27.9%

$150k–$200k 14.4%

$200k–$300k 8.3%

$300k–$500k 10.0%

$500k–$1M 1.2%

Housing overview

Metric	Value
Median home value	$119,800
Median rent / month	$675
Owner occupied	80.7%
Renter occupied	19.3%
Vacant	14.0%
Single-family detached	80.6%
Large apartment buildings	1.9%
Mobile homes	0.5%
Median rooms	5.8
Avg household size (owned)	2.18

Year built

Era	%
2020 or later	0.0%
2010–2019	7.6%
2000–2009	7.5%
1990–1999	6.5%
1980–1989	7.3%
1970–1979	13.6%
1960–1969	5.8%
1950–1959	18.7%
1940–1949	5.2%
1939 or earlier	27.9%

Bedrooms

Size	% of units
No bedroom (studio)	4.9%
1 bedroom	7.0%
2 bedrooms	32.0%
3 bedrooms	37.5%
4 bedrooms	17.0%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.8%
1 vehicle	35.5%
2 vehicles	31.3%
3 or more	31.3%

Heating fuel

Fuel type	%
Utility gas	51.9%
Electricity	36.4%
Propane / LP gas	8.8%
Fuel oil	0.3%
No fuel used	2.6%

Households & families

Household type	Count	%
Married-couple family	963	56.3%
Cohabiting couple	45	2.6%
Male householder, no spouse	371	21.7%
Female householder, no spouse	332	19.4%
Households with children under 18	327	19.1%
Households with seniors (65+)	651	38.0%
Average household size	2.11

Marital status

Status	Male	Female
Never married	20.7%	16.3%
Married	62.0%	59.5%
Separated	1.8%	1.0%
Widowed	6.1%	13.0%
Divorced	9.5%	10.2%

Education

Less than 9th grade 1.0%

Some HS, no diploma 3.8%

HS graduate 24.9%

Some college, no degree 24.5%

Associate's degree 11.2%

Bachelor's degree 25.5%

Graduate / professional 9.1%

Metric	%
HS diploma or higher	95.2%
Bachelor's or higher	34.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	47	6.7%
Kindergarten	11	1.6%
Elementary school	365	52.1%
High school	153	21.9%
College / grad school	124	17.7%

Employment

Industry of employment

Education & healthcare 26.4%

Retail trade 12.4%

Finance & real estate 11.8%

Manufacturing 11.5%

Agriculture & mining 8.5%

Professional & management 7.8%

Arts, food & hospitality 4.5%

Public administration 4.4%

Construction 3.3%

Other services 3.1%

Wholesale trade 2.8%

Transportation & utilities 2.4%

Information 1.2%

Occupation

Category	%
Management, business & arts	37.2%
Service	13.0%
Sales & office	26.8%
Natural resources & construction	12.0%
Production & transportation	10.9%

Employment type

Type	%
Private sector	72.4%
Government	16.3%
Self-employed	11.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	90.3%
Carpool	4.4%
Public transit	0.5%
Walk	1.1%
Other means	0.1%
Avg commute (minutes)	26.9

Poverty

All people 9.8%

Under 18 years 19.1%

18 and over 7.9%

Married-couple families 1.7%

Female-led households 65.6%

Income support

Source	% of households
Social Security	37.3%
Retirement income	26.9%
Supplemental Security	3.4%
Cash public assistance	0.5%
Food stamps / SNAP	10.1%

Health indicators

Condition	%
High blood pressure	36.1%
High cholesterol	34.7%
Heart disease	7.9%
Stroke	3.6%
Asthma	9.7%
Arthritis	30.0%
Kidney disease	3.4%
Pulmonary disease	8.2%
Cancer	8.1%

Behavior / access	%
Binge drinking	14.3%
No physical activity	25.7%
Less than 7 hrs sleep	31.6%
Fair or poor health	15.2%
Poor mental health	12.5%
Poor physical health	10.6%
No health insurance	10.0%
Visited doctor (checkup)	77.8%
Visited dentist	65.7%
Cholesterol screening	90.3%
Teeth loss	15.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	207	6.7%

Disability	%
Any disability	16.2%
Under 18	0.0%
18–64 years	12.2%
65 and over	36.8%

Health insurance coverage

Type	%
Private insurance	79.6%
Public insurance	39.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,621	97.4%
Spanish	29	0.8%
Other Indo-European	23	0.6%
Asian & Pacific Islander	6	0.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,614	97.2%
Born in same state	3,578	96.3%
Born in different state	2,196	59.1%
Foreign born	36	1.0%
Naturalized citizen	103	2.8%
Not a US citizen	37	35.9%

Ancestry

Ancestry	Count	%
French	640	17.2%
Italian	534	14.4%
Arab	275	7.4%
Polish	88	2.4%

Ancestry	Count	%
English	46	1.2%
Dutch	11	0.3%
German	5	0.1%

Technology access

Metric	% of households
Computer access	46.0%
Internet access	89.0%

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

Frequently asked questions

What ZIP codes does Carthage, IL have?

Carthage, IL has one ZIP code: 62321. Each ZIP code serves a distinct delivery area within the city and surrounding region.