Macon County GIS Maps
Macon County, Illinois, has 103,998 residents and covers 580.6 square miles. The population declined 6.1% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Macon County is 17115.
Decatur is the county's largest population center. Macon County also includes 16 zip codes, 10 public school districts and 32 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Macon County Trends
- Population
- 103,998▾
- Median Home Value
- $121,800▴
- K-12 Enrollment
- 16,638—
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Macon County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
Macon County Population
Macon County had 103,998 residents in 2020. That was 6.1% lower than in 2010. Macon County had 10,708 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 179 people per square mile. Some of the county's most populated postal areas include Decatur, Decatur and Decatur.
Population Trend in Macon County IL
Macon County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Macon County Zip Codes
Macon County has 16 zip codes. Some of the county's most populated zip codes include Decatur (62521), Decatur (62526) and Decatur (62522). Decatur is the largest zip by population, with about 33,793 residents or 32% of the county total. Together, the three largest zips account for about 77% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Macon County IL
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 62521 | Decatur | 33,793 | ▾ -5.7% |
| 62526 | Decatur | 31,758 | ▾ -6.8% |
| 62522 | Decatur | 14,838 | ▾ -10.8% |
| 62549 | Mt Zion | 6,282 | ▴ 0.2% |
| 62535 | Forsyth | 3,745 | ▴ 6% |
| Download all zip code data | |||
Macon County Zip Code populations and trends per most recent census data.
Macon County Demographics
Macon County has a median age of 40.9, which makes the county a little older than Illinois overall. About 22.6% of residents are under 18, while 20.6% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 29.1% of the population, which points to a solid working-age base. About 24.1% of adults have a bachelor's degree or higher, above the statewide figure of 37.2%. The county is majority White by population, with Hispanic, Asian, Black and multiracial residents making up a meaningful share of the local mix.
Key Demographics for Macon County IL
Median Age
40.9
Under 18
22.6%
Age 65+
20.6%
Bachelor's+
24.1%
Macon County School Districts
Macon County is served by 10 public school districts with 16,638 students enrolled in 2024. The largest districts on the county map are Decatur 61, Mount Zion Community Unit 3 and Maroa-Forsyth Community Unit 2. Those three districts account for about 69% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in Macon County IL
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Decatur School District 61 | 7,840 | 47.1% | ▴ 0.2% |
| Mount Zion Community Unit School District 3 | 2,427 | 14.6% | ▴ 0.5% |
| Maroa-Forsyth Community Unit School District 2 | 1,212 | 7.3% | ▴ 0.7% |
| Warrensburg-Latham Community Unit District 11 | 1,014 | 6.1% | ▴ 1.5% |
| Meridian Community Unit School District 15 | 942 | 5.7% | ▾ -4.5% |
| Download all school district data | |||
Macon County school district enrollment and trends per most recent NCES reporting data.
Macon County Housing & Real Estate
Macon County has a median home value of $121,800 and a median gross rent of $797. About 70% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Illinois median, while rents come in below the state average. In March 2026, the median listing price was $133,675 and homes spent about 48 days on the market.
Macon County Housing Mix
Macon County housing mix: owner, renter and vacant units.
Macon County Housing Trends
Macon County median home value and rent trend (last 5 years).
Businesses in Macon County, IL
Macon County has 4,334 business listings across 647 categories. The largest categories in Macon County business listings are Churches & Religious Organizations (169, 3.9%), ATMs (68, 1.6%), and Insurance Agencies (64, 1.5%). The full Macon County business listings dataset includes names, categories, addresses and contact details where available. Macon County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Macon County, IL
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 169 | 3.9% |
| ATMs | 68 | 1.6% |
| Insurance Agencies | 64 | 1.5% |
| Contractors | 61 | 1.4% |
| Medical Offices | 61 | 1.4% |
| Parks & Recreation | 57 | 1.3% |
| Auto Repair | 57 | 1.3% |
| Beauty Salons | 50 | 1.2% |
| Professional Services | 49 | 1.1% |
| Pizza Restaurants | 46 | 1.1% |
Macon County Business Listings
| Business | Category | City |
|---|---|---|
| Crossing Recovery Services | Abuse And Addiction Treatment | Decatur |
| Bristol Gardens | Accommodation | Decatur |
| Wilhoit Accounting & Tax Service | Accountant | Mt Zion |
| LevelsFitness | Active Life | Decatur |
| Addiction Treatment Decatur | Addiction Rehabilitation Center | Decatur |
| Decatur School District 61 | Adult Education | Decatur |
| Romantix | Adult Entertainment | Decatur |
| Outdoor Cover Warehouse | Adventure Sports Center | Decatur |
| Goss Advertising | Advertising Agency | Decatur |
| Krispy Krunchy Chicken | African Restaurant | Decatur |
| Download Macon County business listings | ||
Macon County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Macon County Basemaps
Macon County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Macon County Data Package
This page shows a preview of what's included in the Macon County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Macon County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.