Putnam County, Illinois Demographics 2026

Name: Putnam County, Illinois Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Putnam County, Illinois has a population of 5,601, the 94th most populous county in Illinois. The median household income is $75,590 and the median home value is $172,700. The poverty rate is 8.1%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Putnam County Quick Facts

Population 5,601

Median Household Income $75,590

Median Home Value $172,700

Poverty Rate 8.1%

Unemployment Rate 4.2%

Median Age 47.4 years

Homeownership Rate 81.5%

Affordability Ratio 2.3x

Bachelor's Degree+ 22.9%

High School Graduation 94.2%

Cities/Places 6

Population 5,601 94th of 102

Median Income $75,590 9% lower than state

Poverty Rate 8.1%

Unemployment 4.2%

How Putnam County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	5,600	5,601	+0.0%
Median household income	$77,526	$75,590	-2.5%
Median home value	$167,800	$172,700	+2.9%

Median Household Income

Putnam

$75,590

$83,390

National

$80,734

Median Home Value

Putnam

$172,700

$263,300

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 10.4%

$25K-$50K 21.1%

$50K-$100K 37.1%

$100K+ 31.4%

Detailed income brackets

Under $10K

3.7%

$10K-$15K

3.1%

$15K-$20K

1.3%

$20K-$25K

2.4%

$25K-$30K

2.3%

$30K-$35K

3.6%

$35K-$40K

5.6%

$40K-$45K

5.2%

$45K-$50K

4.4%

$50K-$60K

6.9%

$60K-$75K

11.2%

$75K-$100K

18.9%

$100K-$125K

8.1%

$125K-$150K

5.9%

$150K-$200K

9.2%

$200K+

8.2%

Employment

4.2% Unemployment Rate State: 5.8%|National: 5.2%

60.3% Labor Force Participation

Housing Overview

Owner 81.5%

Renter 18.5%

Affordability Index Very Affordable

2.3x home value to income ratio

Median gross rent $851/mo 13.5% of median household income annually

People & Demographics

Age Distribution

Under 18

19.7%

18-34

17.2%

35-54

22.7%

55-74

30.7%

75+

9.8%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 61 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Putnam County

City	Population	Median Income	Poverty	Home Value
Granville	1,472	$70,556	5.3%	$142,500
Hennepin	929	$83,000	8.0%	$168,300
Mark	574	$79,063	10.4%	$161,600
Standard	250	$60,000	10.8%	$108,100
McNabb	233	$84,000	4.7%	$133,300
Magnolia	232	$81,406	3.9%	$153,000

Explore Illinois Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Putnam County is located in Illinois with a total population of 5,601. It is the 94th most populous county out of 102 in Illinois. The county encompasses 6 Census-designated places.

Age Demographics

The median age in Putnam County is 47.4 years. This is 22% higher than the state median of 39.0 years.

Economy, Income & Housing

The median household income in Putnam County is $75,590. This is 9% lower than the state median of $83,390. It is also 6% lower than the national median of $80,734. The poverty rate stands at 8.1%. This is 31% lower than the state poverty rate of 11.8%. The unemployment rate is 4.2%. This is 29% lower than the state rate of 5.8%. The median home value is $172,700. Housing costs are 34% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.3x, Putnam County is one of the most affordable housing markets in the area. 81.5% of occupied housing units are owner-occupied. This homeownership rate is 21% higher than the state average of 67.1%.

Race & Ethnicity

Putnam County has a predominantly White (non-Hispanic) population, comprising 88.6% of all residents. Hispanic or Latino residents account for 6.6%. The White (non-Hispanic) population is significantly higher than the state average (88.6% vs 58.1%). The Black or African American population (0.3%) is well below the state average of 13.3%. The Hispanic or Latino population (6.6%) is well below the state average of 18.8%. The Asian population (0.8%) is well below the state average of 5.9%.

Education

22.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 40% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.2%.

Data Sources & Methodology

All figures for Putnam County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Illinois and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Putnam County, Illinois?

Putnam County has a population of 5,601, making it the 94th most populous county in Illinois.

What is the median income in Putnam County?

The median household income in Putnam County is $75,590 with a poverty rate of 8.1%.

How many cities are in Putnam County, Illinois?

Putnam County contains 6 Census-designated places.