Lee County, Illinois
Lee County, Illinois, has 32,914 residents (July 2025 estimate). Its county seat is Dixon. It uses Central Time and covers 725 sq mi (1,877 km²) of land.
- Resident population, July 2025
- 32,914
- Land area
- 725 sq mi (1,877 km²)
- County seat or government
- Dixon
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $70,292 ± $2,918
- Median home value
- $154,600 ± $7,304
- Median rent, with utilities
- $894 ± $50
- Homes lived in by their owners
- 73.6% ± 1.4 points
- County type
- County
- Metro or micro area
- Dixon, IL micro areaCentral county
- Water area
- 3.78 sq mi (9.78 km²)
- State
- Illinois
- County code (FIPS)
- 17103
- Coordinates (central point)
- 41.747447, -89.299362
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Lee County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 6102122,308 people
- 6108120,844 people
- 6106814,788 people
- 6107113,581 people
- 613428,543 people
- 610643,757 people
- 613103,347 people
- 605183,289 people
- 613761,894 people
- 610061,541 people
- 610311,492 people
- 613531,282 people
All 24
24 ZIP Code areas overlap Lee County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
Lee County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Lee County, largest first
- Dixon Township17,253 people
- Palmyra Township2,877 people
- Amboy Township2,795 people
- Franklin Grove Township1,330 people
- Wyoming Township1,318 people
- Ashton Township1,133 people
- Willow Creek Township901 people
- Sublette Township844 people
- South Dixon Township699 people
- Brooklyn Township680 people
- Nelson Township644 people
- Alto Township608 people
All 22
- Lee Center Township440 people
- Nachusa Township333 people
- Viola Township312 people
- Marion Township293 people
- Harmon Township279 people
- East Grove Township266 people
- Reynolds Township266 people
- Bradford Township253 people
- May Township218 people
- Hamilton Township127 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Illinois, by county
School districts in Lee County, largest first
- Dixon Unit School District 17021,741 people
- Sterling Community Unit District 520,900 people
- Rochelle Township High School District 21217,138 people
- Rock Falls Township High School District 30113,773 people
- Rochelle Community Consolidated District 23113,636 people
- Mendota Township High School District 28010,380 people
- Mendota Community Consolidated School District 28910,085 people
- Bureau Valley Community Unit School District 3406,062 people
- Amboy Community Unit School District 2724,906 people
- Indian Creek Community Unit District 4254,283 people
- Polo Community Unit School District 2224,118 people
- Ashton-Franklin Center CUSD 2753,141 people
All 21
- East Coloma-Nelson Consolidated Elementary School District 202,948 people
- Montmorency Community Consolidated School District 1452,852 people
- Earlville Community Unit School District 92,791 people
- Paw Paw CUSD 2711,588 people
- La Moille Community Unit School District 3031,553 people
- Ohio Community High School District 5051,104 people
- Ohio Community Consolidated School District 171,084 people
- Creston Community Consolidated School District 161814 people
- Steward Elementary School District 220737 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Dixon, Illinois (city)14,910 people
- Rochelle, Illinois (city)9,529 people
- Amboy, Illinois (city)2,384 people
- Franklin Grove, Illinois (village)988 people
- Ashton, Illinois (village)935 people
- Paw Paw, Illinois (village)932 people
- Sublette, Illinois (village)454 people
- Lee, Illinois (village)320 people
- Steward, Illinois (village)271 people
- Compton, Illinois (village)259 people
- West Brooklyn, Illinois (village)152 people
- Nelson, Illinois (village)125 people
All 15
- Harmon, Illinois (village)100 people
- Nachusa, Illinois (CDP)82 people
- Lee Center, Illinois (CDP)0 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Ogle County, Illinois20 mi north
- Bureau County, Illinois27 mi southwest
- DeKalb County, Illinois29 mi east
- Whiteside County, Illinois32 mi west
- LaSalle County, Illinois35 mi southeast
Before using this answer on a form
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