Data / Population density / Orange County

Population density in Orange County

Population density in Orange County was 1,533 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is down 0.3% from 2024. That is the 2nd highest of 58 counties in 2025.

2025, inhabitants per km²1,533
Change on 2024-0.3%
Rank2nd of 58Counties in California ranked
Series high1,550.82020
Series low1,532.92023

Population density in Orange County, 2020 to 2025

CSVChart (SVG)

1,5301,5351,5401,5451,5501,5552020202120222023202420252020: 1,550.8 inhabitants per km²2021: 1,538.5 inhabitants per km²2022: 1,536.3 inhabitants per km²2023: 1,532.9 inhabitants per km²2024: 1,537.1 inhabitants per km²2025: 1,533 inhabitants per km²
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09, published 2026-03-26.
All 6 values
Periodinhabitants per km²
20251,533
20241,537.1
20231,532.9
20221,536.3
20211,538.5
20201,550.8

Compared with California and United States

Place2025
Orange County1,533
California97.5
United States37.3

Rankings

Definition

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Questions

What is the population density in Orange County?

Population density in Orange County was 1,533 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is down 0.3% from 2024. That is the 2nd highest of 58 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved by Invokely on 2026-10-09.

What was the highest population density in Orange County?

1,550.8 inhabitants per km² in 2020, the highest value since 2020 in this series.

More statistics for Orange County

All statistics for Orange County