Brazoria County vs Harris County
Two neighbouring counties in Texas, compared on population, size, income and housing. They share 18 mi of border.
Brazoria County
Texas
Harris County
Texas
Both outlines are drawn at true relative size. Harris County spans about 101.7 km at its widest.
Side by side
| Measure | Brazoria County | Difference | Harris County |
|---|---|---|---|
| Population | 419,080 | -91.7% | 5,045,026 |
| Change since 2020 | 12.2% | +5.6 pp | 6.6% |
| Land area | 1,363 sq mi | -20.1% | 1,707 sq mi |
| Population density | 307 per sq mi | -89.6% | 2,955 per sq mi |
| Median household income | $97,993 | +30.7% | $74,983 |
| Median home value | $301,600 | +9.0% | $276,600 |
| Median age | 36.7 | +6.1% | 34.6 |
| Households | 133,898 | -92.4% | 1,757,164 |
| Housing units | 150,321 | -92.2% | 1,917,790 |
Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026; US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. The difference column is computed here: the first county's figure against the second, expressed as a percentage of the second. The change-since-2020 row is the exception: two growth rates differ in percentage points (pp), not percent. Retrieved 30 August 2026.
What the numbers say
- Harris County holds about 12.0 times the population of Brazoria County: 5,045,026 against 419,080.
- Harris County covers more ground, at 1,707 square miles against 1,363.
- Harris County is the more crowded of the two, at 2,955 people per square mile against 307.
- Median household income is higher in Brazoria County, by 23,010 dollars a year.
- Since 2020, Brazoria County has grown by 12.2% and Harris County has grown by 6.6%.
- They share 18 mi of common border, which the Census Bureau publishes in its county adjacency file and which almost no other county reference presents.
Full pages
Want a different pair? Compare any two of the 3,144 US counties.
Rebuilt from source data 30 August 2026. How these figures are produced.