Where America's semiconductor plants actually are, by county

U.S. semiconductors · Data as of 2026-09-26 · ALEX Intelligence

123 Semiconductor Plants — Santa Clara County, California

#	County	Semiconductor Plants
1	Santa Clara County, California	123
2	Alameda County, California	38
3	Maricopa County, Arizona	34
4	Orange County, California	29
5	Los Angeles County, California	23
6	Travis County, Texas	23
7	Washington County, Oregon	20
8	Middlesex County, Massachusetts	18
9	Dallas County, Texas	16
10	Collin County, Texas	15

Methodology

Source:: U.S. Census Bureau, County Business Patterns 2022, NAICS 334413 (Semiconductor and related device manufacturing)
Measure: Semiconductor Plants, ranked highest first across all U.S. countys (64 ranked in total).
Universe: Places below a 5,000-resident floor are excluded so a median computed on a handful of households cannot top the ranking.
Vintage: 2022
Reproduce this query: https://api.census.gov/data/2022/cbp?get=NAME%2CESTAB%2CNAICS2017_LABEL&for=county%3A%2A&NAICS2017=334413&key=YOUR_CENSUS_KEY

Every figure on this page is computed directly from the dataset named above by ALEX Intelligence. No figure on this page was written by hand or by a language model. The query is stated so that anyone can re-run it and obtain the same table.

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