Counties in Illinois by business revenue: professional, scientific and technical services (Economic Census)
Cook County had the highest business revenue: professional, scientific and technical services (Economic Census) of 95 counties in 2017, at $61.48 billion. Scott County had the lowest, at $764,000. The median was $22.76 million and the figure for Illinois was $87.12 billion. Source: the U.S. Census Bureau.
Map of counties, 2017
- Under 100
- 100 to 200
- 200 and over
- No data
Top 40 counties, 2017
Full ranking
Other periods
- 2022
- 2017
About this ranking
Sales, value of shipments or revenue of employer establishments in professional, scientific, and technical services (NAICS 54), in millions of current US dollars, from the U.S. Census Bureau Economic Census.
Economic Census, taken every five years: values exist for 2017 and 2022 only, and the 2027 census publishes about 2029. Revenue of employer establishments located in the place, in millions of current US dollars, not adjusted for inflation; nonemployers (nonemployer_receipts_usd_*) are not included, and government owned establishments are generally out of scope. Manufacturing is the value of shipments and wholesale and retail trade are sales, so an establishment selling to another counts in both and sectors do not add up to output or GDP. Cells that would disclose individual companies (flag D) or that Census does not publish are missing here, not zero; counties are published for 14 of the 18 sectors. Sectors follow NAICS 2017 for 2017 and NAICS 2022 for 2022.
Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. 2 counties with data in other periods have no value for 2017 and are left out rather than filled from another source. Equal values share a rank.
How to cite
U.S. Census Bureau. Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments. https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip. Retrieved 2026-10-12.Citation styles
APA 7
U.S. Census Bureau. (2021). Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments (Counties in Illinois by business revenue: professional, scientific and technical services (Economic Census), 2017) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip
MLA 9
Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments, Counties in Illinois by business revenue: professional, scientific and technical services (Economic Census), 2017. U.S. Census Bureau, 27 May 2021, https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip. Invokely, https://invokely.ai/rankings/business-revenue-professional-services/illinois-counties?period=2017. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2021. Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments. Counties in Illinois by business revenue: professional, scientific and technical services (Economic Census), 2017. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip. Also distributed by Invokely, https://invokely.ai/rankings/business-revenue-professional-services/illinois-counties?period=2017.
Harvard
U.S. Census Bureau (2021) Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments, Counties in Illinois by business revenue: professional, scientific and technical services (Economic Census), 2017 [Dataset]. Available at: https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip, via Invokely: https://invokely.ai/rankings/business-revenue-professional-services/illinois-counties?period=2017 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_illinois_by_2017,
author = {{U.S. Census Bureau}},
title = {{Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments: Counties in Illinois by business revenue: professional, scientific and technical services (Economic Census), 2017}},
year = {2021},
howpublished = {Data set},
url = {https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/business-revenue-professional-services/illinois-counties?period=2017. Publisher attribution: U.S. Census Bureau. Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments. https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip. Retrieved 2026-10-12.},
}
RIS
TY - DATA
AU - U.S. Census Bureau
TI - Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments: Counties in Illinois by business revenue: professional, scientific and technical services (Economic Census), 2017
PY - 2021
DA - 2021/05/27
PB - U.S. Census Bureau
DB - Invokely
UR - https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip
L2 - https://invokely.ai/rankings/business-revenue-professional-services/illinois-counties?period=2017
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/business-revenue-professional-services/illinois-counties?period=2017.
N1 - Publisher attribution: U.S. Census Bureau. Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments. https://www2.census.gov/programs-surveys/economic-census/data/2017/sector00/EC1700BASIC.zip. Retrieved 2026-10-12.
ER -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in Illinois by business revenue: professional, scientific and technical services (Economic Census) using official data, and cite the source.
rank_places {"indicator":"business_revenue_usd_professional_services","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=business_revenue_usd_professional_services&level=province&within=Illinois&limit=10Questions
Which county has the highest business revenue: professional, scientific and technical services (Economic Census)?
Cook County, with $61.48 billion in 2017, according to the U.S. Census Bureau.
Which county has the lowest business revenue: professional, scientific and technical services (Economic Census)?
Scott County, with $764,000 in 2017.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Economic Census basic statistics by geography (EC1700BASIC, EC2200BASIC): sales, value of shipments, or revenue (RCPTOT) of professional, scientific, and technical services (NAICS 54), all establishments. Retrieved 2026-10-12. 2 counties have no value for 2017 and are not ranked.
Business revenue: professional, scientific and technical services (Economic Census): other rankings
Counties in Illinois: more rankings
- Business revenue: health care and social assistance (Economic Census)
- Business revenue: utilities (Economic Census)
- Business revenue: retail trade (Economic Census)
- Business revenue: educational services (Economic Census)
- GDP per capita, US dollars
- Mean travel time to work
- Labor force participation rate (US five-year survey estimate)
- Households with a broadband internet subscription