ZIP code 45243: Madeira, OH
ZIP code 45243 is in Madeira (55% of residents), The Village of Indian Hill (33%), Kenwood (7.2%) and Concorde Hills (2.6%), in Hamilton County, Ohio. It is in Ohio's 8th congressional district (72%) and Ohio's 1st congressional district (28%). Its state senate districts are State Senate District 8 (90%), State Senate District 7 (9.8%) and State Senate District 9 (0.3%); its state house districts are State House District 27 (90%), State House District 28 (9.8%) and State House District 26 (0.3%).
City and county
| City or town | Share of ZIP residents |
|---|---|
| Madeira | 55% |
| The Village of Indian Hill | 33% |
| Kenwood | 7.2% |
| Concorde Hills | 2.6% |
| Plainville | 0.3% |
| Silverton | 0.1% |
| Milford | <0.1% |
| County | Share of ZIP residents |
|---|---|
| Hamilton County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Madeira city | 55% |
| The Village of Indian Hill city | 33% |
| Sycamore township | 9.8% |
| Columbia township | 1.2% |
| Silverton village | 0.1% |
| Milford city | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Ohio's 8th congressional district (OH-08) | 72% |
| Ohio's 1st congressional district (OH-01) | 28% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (OH-08) | Warren Davidson (R) | 202-225-6205 | 72% |
| U.S. Representative (OH-01) | Greg Landsman (D) | 202-225-2216 | 28% |
| U.S. Senator | Bernie Moreno (R) | 202-224-2315 | statewide |
| U.S. Senator | Jon Husted (R) | 202-224-3353 | statewide |
| State Senator (State Senate District 8) | Bill Blessing (R) | 90% | |
| State Senator (State Senate District 7) | Steve Wilson (R) | 9.8% | |
| State Senator (State Senate District 9) | Catherine Ingram (Democratic) | 0.3% | |
| State Representative (State House District 27) | Rachel Baker (Democratic) | 90% | |
| State Representative (State House District 28) | Karen Brownlee (Democratic) | 9.8% | |
| State Representative (State House District 26) | Ashley Bryant Bailey (Democratic) | 0.3% |
Elected in 2024 under OH's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).
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).
Local government
- Madeira laws: search for the Madeira, Ohio code of ordinances
- The Village of Indian Hill laws: search for the The Village of Indian Hill, Ohio code of ordinances
- Kenwood laws: search for the Kenwood, Ohio code of ordinances
- Hamilton County laws: search for the Hamilton County, Ohio code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 8 | 90% |
| State Senate District 7 | 9.8% |
| State Senate District 9 | 0.3% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 27 | 90% |
| State House District 28 | 9.8% |
| State House District 26 | 0.3% |
Voting precincts
19 voting precincts overlap ZIP 45243. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:45243")
ZIP 45243 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.