---
type: Jurisdiction
title: "New Castle County, DE"
classification: county
fips: "10003"
state: "DE"
demographics:
  population: 588093
  population_under_18: 138888
  population_18_64: 198150
  population_65_plus: 251055
  median_household_income: 89846
  poverty_rate: 9.99
  homeownership_rate: 68.49
  unemployment_rate: 5.05
  median_home_value: 372200
  gini_index: 0.4527
  vacancy_rate: 5.44
  race_white: 302952
  race_black: 156425
  race_asian: 40551
  race_native: 2639
  hispanic: 73584
  bachelors_plus: 230059
sources:
  - field: demographics
    source: Census ACS 2023
confidence: official
tags: [jurisdiction, county, de]
timestamp: "2026-07-03"
---

# New Castle County, DE

County jurisdiction — 3 officeholders mapped.

## Demographics (ACS 2023)

| Measure | Value |
| --- | --- |
| Population | 588093 |
| Under 18 | 138888 |
| 18–64 | 198150 |
| 65+ | 251055 |
| Median household income | 89846 |
| Poverty rate | 9.99 |
| Homeownership rate | 68.49 |
| Unemployment rate | 5.05 |
| Median home value | 372200 |
| Gini index | 0.4527 |
| Vacancy rate | 5.44 |
| White | 302952 |
| Black | 156425 |
| Asian | 40551 |
| Native | 2639 |
| Hispanic/Latino | 73584 |
| Bachelor's or higher | 230059 |

## Source

- demographics: Census ACS 2023