Ventura County

Fillmore, CA Business Index

Fillmore is a city in Ventura County with an estimated 16,937 residents as of 2025, up 2.6% since 2020. Fillmore's business base is indexed below across 48 owner-operated industries.

Population (2025)
16,937
U.S. Census Bureau estimate
Change since 2020
+2.6%
2020–2025
Land area
3.3 sq mi
2023 Census Gazetteer
Density
5,128/sq mi
Residents per square mile

Population trend

Annual resident population estimates, U.S. Census Bureau Population Estimates Program.

YearPopulationYear over year
202016,501n/a
202116,585+0.51%
202216,700+0.69%
202317,013+1.87%
202417,068+0.32%
202516,937-0.77%

Fillmore holds 2.0% of Ventura County’s 830,851 residents.

Industries in Ventura County

Fillmore businesses compete in the Ventura County market. Establishment counts, employment and payroll below are reported at county level by the U.S. Census Bureau.

Nearby cities

Other indexed places in Ventura County and the surrounding area.

Data last refreshed from source on 2026-09-08.

Sources

  1. U.S. Census Bureau, Population Estimates Program (Vintage 2025). Subcounty resident population estimates. Retrieved 2026-09-08.
  2. U.S. Census Bureau, 2023 Gazetteer Files. Land area and internal point coordinates. Retrieved 2026-09-08.
  3. U.S. Census Bureau, ANSI/FIPS Place-to-County Relationship File Retrieved 2026-09-08.