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Logan County, IL
13 cities and towns and 14 ZIP codes in Logan County, Illinois.
Population
27,713
Land area
618sq mi
People per sq mi
45
ZIP codes
14
Cities and towns in Logan County
Logan County at a glance
- Logan County is 80% less dense than Illinois as a whole.
- The median household income is $66,358, 20% below the Illinois median of $83,390.
- A typical owner-occupied home is valued at $134,400 (49% below Illinois) and median rent is $829 a month.
- Its largest cities are Lincoln (13,281), Atlanta (1,580) and Mount Pulaski (1,507).
Local data for Logan County, IL
Counts from official public data
Housing and community stats
Logan County, IL, American Community Survey 2020-2024
Median household income
$66,358
Poverty rate
13.1%
Median home value
$134,400
Prices +7.9% in a year
Median rent
$829/mo
Homeownership
68.5%
Bachelor's or higher
20.9%
Median age
41.1
Average commute
21.0 min
Largest reported origins and ancestries: German Americans (7,242), Irish Americans (3,615), Italian Americans (620).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.8%
Sep 2026, -1.0 pts in a year
Average annual pay
$54,017
7,636 jobs, 2025
Income per person
$50,572
BEA, 2024
Federal spending
$180M
FY 2026, $6,449 per person
PPP loans
$38.4M
1,028 loans, 5,491 jobs reported
Campaign donations
$89.8K
Itemized, 2026 cycle
How people get to work
Logan County, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone79.4%
- Carpooled7.4%
- Public transit0.4%
- Walked2.6%
- Bicycle0.1%
- Taxi, ride-hailing, motorcycle or other1.4%
- Worked from home8.7%
Average one-way commute: 21.0 minutes for people who do not work from home.
Environment and hazard risk
Logan County, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: drought
Storm events since 1996
609
Most often thunderstorm wind
Flood insurance policies
41
0.4% of homes, county
July high / Jan low
86° / 18°F
39.8 inches of rain a year
Hazards, floods and storm historyCheck a flood zone12 historic places
Health statistics
Share of adults in Logan County, IL, CDC PLACES estimates
Obesity
38.5%
U.S. 33.3% +5.2 pts
Diabetes
11.6%
U.S. 12.1% -0.5 pts
Smoking
15.1%
U.S. 12.8% +2.3 pts
Uninsured (18-64)
8.5%
U.S. 11.1% -2.6 pts
Cities, towns and ZIP codes in Logan County
Population shown
Frequently asked questions
- What is the largest city in Logan County, IL?
- Lincoln is the largest city or town in Logan County, with about 13,281 residents.
- How many ZIP codes are in Logan County?
- Logan County includes 14 ZIP Code Tabulation Areas, including 61723, 61751, 62512, 62518, 62519.
- What is the population of Logan County, IL?
- About 27,713 people live in Logan County, based on American Community Survey 5-year estimates.
- What counties border Logan County?
- Logan County borders Sangamon County, McLean County, Tazewell County, Macon County, De Witt County, Mason County, Menard County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023