Springfield, Illinois
Springfield is a city in Sangamon County, Illinois, with 114,304 residents in 2020. It spans 2 congressional districts: IL-13 (84%) and IL-15 (16%). It spans 2 state senate and 3 state house districts.
County
| County | Share of residents |
|---|---|
| Sangamon County | 100% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Illinois's 13th congressional district (IL-13) | 84% |
| Illinois's 15th congressional district (IL-15) | 16% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Misty Buscher | citywide | |
| U.S. Representative (IL-13) | Nikki Budzinski (D) | 202-225-2371 | 84% |
| U.S. Representative (IL-15) | Mary E. Miller (R) | 202-225-5271 | 16% |
| U.S. Senator | Richard J. Durbin (D) | 202-224-2152 · contact form | statewide |
| U.S. Senator | Tammy Duckworth (D) | 202-224-2854 · contact form | statewide |
| State Senator (State Senate District 48) | Doris Turner (Democratic) | 217-670-1828 | 98% |
| State Senator (State Senate District 54) | Steve McClure (R) | 217-960-0788 | 2.1% |
| State Representative (State House District 95) | Mike Coffey (R) | 60% | |
| State Representative (State House District 96) | Sue Scherer (Democratic) | 217-877-9636 | 38% |
| State Representative (State House District 108) | Wayne Rosenthal (R) | 2.1% |
From Wikidata (community-maintained); confirm on the city's website.
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0); Mayors: Wikidata (CC0).
Local government
- Springfield website: https://springfield.il.us
- Springfield laws: search for the Springfield, Illinois code of ordinances
- Sangamon County website: http://www.co.sangamon.il.us
- Sangamon County laws: search for the Sangamon County, Illinois code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 48 | 98% |
| State Senate District 54 | 2.1% |
| State house district | Share of residents |
|---|---|
| State House District 95 | 60% |
| State House District 96 | 38% |
| State House District 108 | 2.1% |
ZIP codes
Percentages mark ZIPs only partly in Springfield: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Springfield's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:1772000")
Springfield here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.