Hillsborough County vs Pinellas County
Two neighbouring counties in Florida, compared on population, size, income and housing. They share 63 mi of border.
Hillsborough County
Florida
Pinellas County
Florida
Both outlines are drawn at true relative size. Hillsborough County spans about 75.0 km at its widest.
Side by side
| Measure | Hillsborough County | Difference | Pinellas County |
|---|---|---|---|
| Population | 1,574,115 | +65.9% | 948,563 |
| Change since 2020 | 7.4% | +8.6 pp | -1.2% |
| Land area | 1,023 sq mi | +273.5% | 273.8 sq mi |
| Population density | 1,539 per sq mi | -55.6% | 3,465 per sq mi |
| Median household income | $79,540 | +9.5% | $72,646 |
| Median home value | $371,500 | +4.6% | $355,100 |
| Median age | 37.9 | -22.7% | 49.0 |
| Households | 583,192 | +36.1% | 428,473 |
| Housing units | 630,692 | +21.3% | 520,107 |
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
- Hillsborough County holds about 1.7 times the population of Pinellas County: 1,574,115 against 948,563.
- Hillsborough County covers more ground, at 1,023 square miles against 273.8.
- Pinellas County is the more crowded of the two, at 3,465 people per square mile against 1,539.
- Median household income is higher in Hillsborough County, by 6,894 dollars a year.
- Since 2020, Hillsborough County has grown by 7.4% and Pinellas County has shrunk by 1.2%.
- They share 63 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.