ZIP code 21912: District 1, Cecilton, MD
ZIP code 21912 is in Cecilton (1.1% of residents), in Cecil County (99%) and New Castle County (1.5%), Maryland. 99% of its residents live outside city limits. It is in Maryland's 1st congressional district (99%) and Delaware's at-large congressional district (1.5%). Its state senate districts are State Senate District 36 (99%) and State Senate District 10 (1.5%); its state house districts are State Legislative District 36 (99%) and State Representative District 8 (1.5%).
See it on the mapAll of Maryland
City and county
| City or town | Share of ZIP residents |
|---|---|
| Cecilton | 1.1% |
| County | Share of ZIP residents |
|---|---|
| Cecil County | 99% |
| New Castle County | 1.5% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| District 1, Cecilton | 70% |
| District 2, Chesapeake City | 28% |
| Middletown-Odessa CCD | 1.5% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Maryland's 1st congressional district (MD-01) | 99% |
| Delaware's at-large congressional district (DE-AL) | 1.5% |
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 (MD-01) | Andy Harris (R) | 202-225-5311 | 99% |
| U.S. Representative (DE-AL) | Sarah McBride (D) | 202-225-4165 | 1.5% |
| U.S. Senator | Angela D. Alsobrooks (D) | 202-224-4524 · contact form | statewide |
| U.S. Senator | Chris Van Hollen (D) | 202-224-4654 · contact form | statewide |
| State Senator (State Senate District 36) | Steve Hershey (R) | 99% | |
| State Senator (State Senate District 10) | Stephanie Hansen (Democratic) | 1.5% | |
| Delegate (State Legislative District 36) | Jay Jacobs (R) | 99% | |
| Delegate (State Legislative District 36) | Jeff Ghrist (R) | 99% | |
| Delegate (State Legislative District 36) | Steve Arentz (R) | 99% | |
| State Representative (State Representative District 8) | Rae Moore (Democratic) | 1.5% |
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
- Cecilton website: http://www.ceciltonmd.gov/
- Cecilton laws: search for the Cecilton, Maryland code of ordinances
- Cecil County website: https://www.ccgov.org/
- Cecil County laws: search for the Cecil County, Maryland code of ordinances
- New Castle County website: https://www.newcastlede.gov
- New Castle County laws: search for the New Castle County, Maryland code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 36 | 99% |
| State Senate District 10 | 1.5% |
| State house district | Share of ZIP residents |
|---|---|
| State Legislative District 36 | 99% |
| State Representative District 8 | 1.5% |
Voting precincts
3 voting precincts overlap ZIP 21912. It also crosses into DE. 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:21912")
ZIP 21912 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.