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City Statistics

Active Trucking Companies
in Rock Valley, IA

62 active carriers, brokers & freight companies. Located in Sioux County.

Rock Valley, IA FMCSA data • updated weekly 0.38% of Iowa
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62
Active Trucking Companies
0.38% of all active carriers in Iowa
2
New FMCSA Registrations (24 Mo.)
Avg 0.1 new companies per month
1
Median Fleet Size
Power units at the midpoint of all reporting companies
52.5%
Owner-Operator Rate
vs. 57.3% statewide in Iowa
New FMCSA Registrations
011 Oct '24Apr '25Oct '25Apr '26Sep '26
1
Total
0.0
Avg / month
1
Best: Jul 2026
0
Lowest: Oct 2024
Company Size Distribution
61
Reporting
Fleets
1 Power Unit 32 52.5%
2–5 Units 19 31.1%
6–20 Units 8 13.1%
21–100 Units 2 3.3%
101+ Units 0 0.0%

Based on total power units reported to FMCSA. Median: 1 unit(s).

Company Age Distribution
19.6
Avg age
(years)
0–2 Years 3 4.8%
3–5 Years 7 11.3%
6–10 Years 5 8.1%
11–20 Years 21 33.9%
20+ Years 26 41.9%

Based on FMCSA registration date. Average age: 19.6 years.

Company Authority Types
Carrier 61 98.4%
Broker 1 1.6%

A company may hold multiple authority types simultaneously.

Top 10 Cargo Types
# Cargo Type Companies % of City
1 Grain, Feed & Hay 33 53.2%
2 Livestock 31 50.0%
3 General Freight 15 24.2%
4 Other 15 24.2%
5 Farm Supplies 8 12.9%
6 Construction 6 9.7%
7 Dry Bulk Commodities 5 8.1%
8 Metal: Sheets & Coils 5 8.1%
9 Machinery & Large Objects 5 8.1%
10 Fresh Produce 2 3.2%
Largest Fleets in Rock Valley
# Company Fleet
1 TRI-STATE READY MIX INC 43
2 VALLEY SAND & GRAVEL INC 25
3 SIOUX VALLEY RENDERING COMPANY 13
4 ROCK VALLEY HAY AUCTION CO 11
5 TIMOTHY VAN TILBURG 11
6 POST METAL RECYCLING LLC 10
7 A & I PRODUCTS 8
8 D & J TRUCKING ENT LLC 6
9 RANSCHAU LIVESTOCK LLC 6
10 MATERIAL SERVICES INC 6

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Data source: U.S. Federal Motor Carrier Safety Administration (FMCSA) — active carrier registrations. Last updated: August 19, 2026. Active status reflects carriers with FMCSA status code "A" at the time of data collection.