Anna is a city in Union County, Illinois, home to about 4,196 people across 3.6 square miles. Its ZIP code is 62906.
Homes sold for a median of $86 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Anna. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Anna’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | St. Louis Lambert International Airport (STL)108 miles away |
|---|---|
| Closer regional airport | Veterans Airport of Southern Illinois (MWA)23 miles away |
| Nearest city of 250,000+ | St. Louis, MO98 miles away |
| Nearest city of 1 million+ | Chicago, IL313 miles away |
Straight-line distances from the center of Anna; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Anna had 4,303 residents in the 2020 census, down 16% since 2000.
It’s the 370th largest of 1,450 towns in Illinois by population.
Union County grew from 22,610 residents in 1900 to 17,244 in 2020.
Union County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 90°F in summer, and winter lows average 25°F. About 51.1 inches of rain and melted snow fall in a typical year, with about 10 inches of snow.
Source: NOAA 1991–2020 climate normals, Anna 2 Nne, IL weather station (about a mile away).
3,489 jobs at 352 businesses in Union County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
111 doctors and other health care providers list an office in Anna.
Nearest hospitals
Providers with an office here
| Primary care doctors | 9 |
|---|---|
| Specialist doctors | 3 |
| Dentists | 11 |
| Nurse practitioners and physician assistants | 25 |
| Mental health providers | 48 |
| Physical and occupational therapists | 9 |
| Optometrists | 3 |
| Chiropractors | 3 |
| Pharmacies | 8 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries
Museums
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Anna CCSD 37, Anna Jonesboro CHSD 81, Tri-County Sp Ed Jnt Agreement. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Lincoln Elem SchoolAnna | Pre-K–2 | 235 | Public | 1.5 mi |
| Davie Elem SchoolAnna | 3–4 | 122 | Public | 1.8 mi |
| Anna Junior High SchoolAnna | 5–8 | 236 | Public | 1.8 mi |
| Anna-Jonesboro High SchoolAnna | 9–12 | 476 | Public | 2.0 mi |
| TCSE-Anna Jonesboro HSAnna | — | — | Special Education | 2.0 mi |
| Tri-County South - ChoateAnna | — | — | Special Education | 1.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.