Document location reference
New Castle County, Delaware
Use the county name and FIPS code to distinguish jurisdictions in your own document-preparation checklist. The signing workflow records the document and signer actions; it does not determine which county or legal process applies to an agreement.
Identify the right place
New Castle County is a county or county equivalent in Delaware. Its five-digit FIPS code is 10003; preserve the leading zero when storing county codes as text. The Gazetteer lists 67.69 square miles of water and a representative point at 39.575915, -75.644132. That point identifies the geography; it is not a street address or a site boundary.
Open this county in Census data · Download this county as JSON
Document location reference checklist
- Confirm the correct jurisdiction and the final PDF before inviting signers.
- Check whether the receiving authority requires a special form, witness or notarization.
- Save the completed PDF and its signing record; handle any required filing separately.
An electronic signature does not itself record a deed, notarize a document or establish county filing acceptance.
Sources and interpretation
Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.
Population is an estimate, not a live count. Gazetteer land and water measures describe the geographic area; they do not measure service availability, households, businesses or market demand. Match the FIPS code and source vintage when joining another dataset.
More county references in Delaware
- Kent County
Delaware · FIPS 10001
194,786 residents · 2025 estimate
- Sussex County
Delaware · FIPS 10005
277,140 residents · 2025 estimate