New Castle County, Delaware
What we have for New Castle County today, and what is coming.
Basics
- County code (FIPS): 10003
- Land area: 426 square miles
- Population: 570,719
Federal money spent here
Fiscal year 2026: $4.4 billion in federal contracts, grants, loans and other awards for work done in New Castle County.
Who represents New Castle County
U.S. Senate (whole state): Lisa Blunt Rochester (Democrat), Christopher A. Coons (Democrat).
U.S. House districts that include part of this county
| District | Member | Share of county land |
|---|---|---|
| Congressional District (at Large) | Sarah McBride (Democrat) | 100% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| State Senate District 14 | Kyra Hoffner (Democratic) | 24.7% |
| State Senate District 12 | Nicole Poore (Democratic) | 16.7% |
| State Senate District 10 | Stephanie Hansen (Democratic) | 14% |
| State Senate District 4 | Laura Sturgeon (Democratic) | 10.4% |
| State Senate District 8 | Dave Sokola (Democratic) | 5.9% |
| State Senate District 11 | Bryan Townsend (Democratic) | 4.8% |
| State Senate District 9 | Jack Walsh (Democratic) | 4.7% |
| State Senate District 2 | Darius Brown (Democratic) | 3.8% |
| State Senate District 13 | Marie Pinkney (Democratic) | 3.7% |
| State Senate District 7 | Spiros Mantzavinos (Democratic) | 3.4% |
| State Senate District 5 | Ray Seigfried (Democratic) | 3.1% |
| State Senate District 1 | Dan Cruce (Democratic) | 3% |
| State Senate District 3 | Tizzy Lockman (Democratic) | 1.8% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| State Representative District 9 | Kevin Hensley (Republican) | 18.2% |
| State Representative District 11 | Jeff Spiegelman (Republican) | 15.7% |
| State Representative District 12 | Krista Griffith (Democratic) | 8% |
| State Representative District 27 | Eric Morrison (Democratic) | 6.8% |
| State Representative District 8 | Rae Moore (Democratic) | 6.6% |
| State Representative District 17 | Melissa Minor-Brown (Democratic) | 6.1% |
| State Representative District 15 | Kam Smith (Democratic) | 4.5% |
| State Representative District 23 | Mara Gorman (Democratic) | 3.8% |
| State Representative District 22 | Mike Smith (Republican) | 3.1% |
| State Representative District 16 | Frank Cooke (Democratic) | 2.9% |
| State Representative District 25 | Cyndie Romer (Democratic) | 2.9% |
| State Representative District 6 | Debra Heffernan (Democratic) | 2.2% |
| State Representative District 21 | Frank Burns (Democratic) | 2.2% |
| State Representative District 19 | Kim Williams (Democratic) | 2.1% |
| State Representative District 10 | Melanie Ross Levin (Democratic) | 2% |
| State Representative District 18 | Sophie Phillips (Democratic) | 2% |
| State Representative District 24 | Ed Osienski (Democratic) | 1.8% |
| State Representative District 26 | Madinah Wilson-Anton (Democratic) | 1.7% |
| State Representative District 2 | Stephanie Bolden (Democratic) | 1.4% |
| State Representative District 7 | Larry Lambert (Democratic) | 1.4% |
| State Representative District 5 | Kendra Johnson (Democratic) | 1.3% |
| State Representative District 13 | DeShanna Neal (Democratic) | 1.3% |
| State Representative District 28 | Bill Carson (Democratic) | 1.2% |
| State Representative District 1 | Nnamdi Chukwuocha (Democratic) | 0.6% |
| State Representative District 3 | Josue Ortega (Democratic) | 0.4% |
Matched by district number using the U.S. Census Bureau 2020 county–district relationship files (land area overlap; districts may have been redrawn since). Your exact district depends on your address: U.S. House · state legislators.
County government
Find the official county website and contacts in the USA.gov local government directory or the National Association of Counties explorer.
Sources: U.S. Census Bureau Gazetteer (county list, public domain); USAspending.gov (U.S. Treasury). Built 2026-11-03 15:28.