Where America's professional organisations actually are, by county

AI safety research · Data as of 2026-09-12 · ALEX Intelligence

308 Professional Organisations — District of Columbia, District of Columbia

#	County	Professional Organisations
1	District of Columbia, District of Columbia	308
2	Cook County, Illinois	210
3	New York County, New York	136
4	Los Angeles County, California	135
5	Travis County, Texas	100
6	Montgomery County, Maryland	97
7	Sacramento County, California	87
8	Alexandria city, Virginia	86
9	Maricopa County, Arizona	81
10	Fairfax County, Virginia	77

Methodology

Source:: U.S. Census Bureau, County Business Patterns 2022, NAICS 813920 (Professional organizations)
Measure: Professional Organisations, ranked highest first across all U.S. countys (380 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=813920&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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