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Professional, Scientific, and Technical Services businesses in Cook County, IL

Census County Business Patterns 2022. NAICS sector 54.

Establishments
19,198
50.5% of IL sector
Employees
266,129
59.0% of IL sector
Annual Payroll
$34.54B
total 2022
Palavir analytics consulting

Using this data to decide where to sell, expand, or hire?

These Census figures for professional, scientific, and technical services businesses in Cook County, IL are a starting point. Palavir combines public market data like this with your own customers, pipeline, and financials in Power BI, so you can size a market and pick the next territory with your numbers, not just the county totals.

County context

Population
5,185,812
Median Household Income
$81,797
Median Home Value
$305,200

Source: ACS 5-Year Estimates 2023.

For CPAs & bookkeepers serving this market

Run an accounting or bookkeeping practice in Cook County, IL?

Two PDF guides built from real Palavir client work. Ready-to-paste AI prompts that work with Claude, ChatGPT, or Gemini. Single PDF each, no subscription, no community gate.

Compare to Illinois state averages

MetricCook CountyIL totalCounty share
Establishments19,19838,01250.5%
Employees266,129450,82959.0%
Annual Payroll$34.54B$52.72B—

Related resources

Other sectors in Cook County

Professional, Scientific, and Technical Services in other Illinois counties

Data sources: U.S. Census Bureau County Business Patterns 2022 (NAICS 2017); American Community Survey 5-Year Estimates 2023. Public domain (USA.gov).

Generated 2026-05-27. NAICS suppression rules may zero out small counts.