Morgan County, Illinois
County seat: Jacksonville · Population 32,515 (2025) · 569 sq mi
Morgan County is the 45th most populous of Illinois's 102 counties, with 32,515 people (2025 estimate). Its county seat is Jacksonville. It is part of the Central region, one of the 10 Illinois economic development regions (DCEO). The map shows its 10 cities and towns and the 7 neighboring counties.
Morgan County facts
- County seat
- Jacksonville
- Population (2025 estimate)
- 32,515 −3.1% since 2020
- Land area
- 569 sq mi 42nd largest of 102
- Water area
- 4 sq mi
- Population density
- 57 per sq mi
- Established
- 1823
- Same name
- One of 11 Morgan Counties in the US
- Named after
- Daniel Morgan American pioneer, soldier, and politician (1736-1802)
- Largest city
- Jacksonville 17,752
- Median household income
- $66,306
- Cities and towns
- 10 plus 2 CDPs
- ZIP codes
- 16
- Time zone
- Central
- FIPS code
- 17137
Cities and towns in Morgan County
Morgan County has 10 incorporated cities, towns and villages. Populations count the people living inside Morgan County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Jacksonville (county seat) | City | 17,752 | |
| South Jacksonville | Village | 3,195 | |
| Waverly | City | 1,142 | |
| Meredosia | Village | 795 | |
| Franklin | Village | 587 | |
| Murrayville | Village | 546 | |
| Woodson | Village | 483 | |
| Chapin | Village | 457 | |
| Concord | Village | 150 | |
| Lynnville | Village | 93 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Alexander | 239 | |
| Literberry | 39 |
ZIP codes in Morgan County
16 ZIP codes reach into Morgan County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 62082 also Greene and Scott counties
- 62601
- 62611 also Cass County
- 62612 also Cass County
- 62621 also Scott County
- 62628 also Scott County
- 62631
- 62638 also Macoupin County
- 62650 also Scott County
- 62665 also Scott County
- 62667 also Macoupin County
- 62668 also Scott County
- 62670 also Sangamon County
- 62692 also Sangamon County
- 62694 also Scott County
- 62695
Population of Morgan County, 2020–2025
Morgan County shrank by 1,052 people (−3.1%) between April 2020 and July 2025: 670 more deaths than births and a net loss of 396 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 33,490 |
| 2021 | 33,300 |
| 2022 | 33,033 |
| 2023 | 32,787 |
| 2024 | 32,639 |
| 2025 | 32,515 |
Neighboring counties
- Scott County west · 4,866 people
- Cass County north · 12,463 people
- Sangamon County east · 194,170 people
- Macoupin County southeast · 43,748 people
- Greene County south · 11,313 people
- Pike County west · 14,231 people
- Brown County northwest · 6,401 people
Printable Morgan County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (105 KB)
- PNG (2400 px) (75 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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