ZIP code 68757: Newcastle, NE
ZIP code 68757 is in Newcastle (43% of residents) and Obert (3.4%), in Dixon County (92%) and Cedar County (8.5%), Nebraska. 54% of its residents live outside city limits. It is in Nebraska's 3rd congressional district. Its state senate district is State Senate District 40.
See it on the mapAll of Nebraska
City and county
| City or town | Share of ZIP residents |
|---|---|
| Newcastle | 43% |
| Obert | 3.4% |
| County | Share of ZIP residents |
|---|---|
| Dixon County | 92% |
| Cedar County | 8.5% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Newcastle township | 63% |
| Hooker township | 20% |
| Precinct 7 | 8.5% |
| Silvercreek township | 4.5% |
| Daily township | 4.2% |
| Precinct 6 | land only |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Nebraska's 3rd congressional district (NE-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (NE-03) | Adrian Smith (R) | 202-225-6435 | 100% |
| U.S. Senator | Deb Fischer (R) | 202-224-6551 · contact form | statewide |
| U.S. Senator | Pete Ricketts (R) | 202-224-4224 · contact form | statewide |
| State Senator (State Senate District 40) | Barry DeKay (Nonpartisan) | 100% |
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
- Newcastle laws: search for the Newcastle, Nebraska code of ordinances
- Obert laws: search for the Obert, Nebraska code of ordinances
- Dixon County website: http://www.co.dixon.ne.us
- Dixon County laws: search for the Dixon County, Nebraska code of ordinances
- Cedar County website: http://www.co.cedar.ne.us
- Cedar County laws: search for the Cedar County, Nebraska code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 40 | 100% |
Voting precincts
3 voting precincts overlap ZIP 68757. 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:68757")
ZIP 68757 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.