Where Are the Most Janitorial/Cleaning Businesses in the U.S.? (2026 County Data)
Using Valtr market data, here are the U.S. counties with the most janitorial/cleaning businesses — 66,308 counted across 1719 counties.
If you're weighing whether to start a janitorial/cleaning businesse business, the first question isn't "is it profitable" in the abstract — it's how saturated is your specific market. We pulled the Valtr market data to map exactly where janitorial/cleaning businesses cluster.
The data
Across the 1719 U.S. counties with reportable data, the Census counts 66,308 janitorial/cleaning businesses. The most concentrated county is Los Angeles County, California with 1409.
Top 25 counties by number of janitorial/cleaning businesses
| # | County | Establishments |
|---|---|---|
| 1 | Los Angeles County, California | 1409 |
| 2 | Cook County, Illinois | 1083 |
| 3 | Maricopa County, Arizona | 807 |
| 4 | San Diego County, California | 683 |
| 5 | Miami-Dade County, Florida | 666 |
| 6 | Broward County, Florida | 640 |
| 7 | Orange County, California | 616 |
| 8 | King County, Washington | 608 |
| 9 | Harris County, Texas | 595 |
| 10 | Palm Beach County, Florida | 551 |
| 11 | Clark County, Nevada | 523 |
| 12 | Suffolk County, New York | 496 |
| 13 | Orange County, Florida | 483 |
| 14 | Hillsborough County, Florida | 445 |
| 15 | Dallas County, Texas | 435 |
| 16 | Hennepin County, Minnesota | 429 |
| 17 | Middlesex County, Massachusetts | 417 |
| 18 | Riverside County, California | 415 |
| 19 | Santa Clara County, California | 399 |
| 20 | Gwinnett County, Georgia | 389 |
| 21 | Fairfax County, Virginia | 357 |
| 22 | Mecklenburg County, North Carolina | 357 |
| 23 | Salt Lake County, Utah | 356 |
| 24 | New York County, New York | 349 |
| 25 | Wake County, North Carolina | 343 |
Density isn't destiny — a high count can mean strong demand or a saturated market. Score your specific location with Valtr to see whether the numbers say go or stop where you are.
Source: Valtr market data
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