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ZIP 61340 · Mark

Who lives in ZIP code 61340 (Mark, IL): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Mark, IL · Putnam County

uszips 2026
People545
Median age44.4
Household income$78,750
Home value$165,670
Median rent$938/mo
Poverty10.3%
College degree+21.0%
Commute19 min

Place

Metro area
Ottawa, IL (micro)
Wider region
Chicago-Naperville, IL-IN-WI
Time zone
Central
Density
241 / sq mi
Housing units
260

County

Putnam100%

Share of the ZIP's people in each county.

Age mix

Under 1014.5%
10–1913.8%
20s5.3%
30s11.4%
40s10.1%
50s15.6%
60s15.8%
70s10.7%
80+3.0%

22.9% are 65 or older; 73.2% are adults.

Household income

Under $25K12.0%
$25K–50K21.9%
$50K–75K15.0%
$75K–100K13.1%
$100K–150K22.3%
$150K+15.8%

38.1% of households earn $100K+. Median per person: $39,044.

Education (adults 25+)

Less than high school3.8%
High school35.8%
Some college39.4%
Bachelor's17.4%
Graduate3.6%

39.0% of degrees are in STEM fields.

Race

White100.0%
Black0.0%
Asian0.0%
Native American0.0%
Pacific Islander0.0%
Other0.0%
Two or more0.0%

10.8% Hispanic or Latino (of any race).

Households & family

Married
62.0%
Never married
20.0%
Divorced
15.9%
Widowed
2.1%
Family size
2.57
Dual-income families
45.0%

Housing

Own their home
73.5%
Rent burden
29.3%
Men / women
61% / 39%

Work

In labor force
64.4%
Unemployment
2.6%
Self-employed
0.0%
Farmers
0.0%

Community

Charitable givers
0.0%
Veterans
7.8%
With a disability
16.7%
No health insurance
1.3%
Limited English
0.0%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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