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City Statistics

Active Trucking Companies
in Rock Valley, IA

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

Rock Valley, IA FMCSA data • updated weekly 0.38% of Iowa
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60
Active Trucking Companies
0.38% of all active carriers in Iowa
2
New FMCSA Registrations (24 Mo.)
Avg 0.1 new companies per month (-100.0% YoY)
1
Median Fleet Size
Power units at the midpoint of all reporting companies
53.3%
Owner-Operator Rate
vs. 57.5% statewide in Iowa
New FMCSA Registrations
011 Aug '22Aug '23Aug '24Aug '25Jul '26
4
Total
0.1
Avg / month
1
Best: Sep 2022
0
Lowest: Aug 2022
Company Size Distribution
60
Reporting
Fleets
1 Power Unit 32 53.3%
2–5 Units 18 30.0%
6–20 Units 8 13.3%
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
20.0
Avg age
(years)
0–2 Years 2 3.3%
3–5 Years 7 11.7%
6–10 Years 5 8.3%
11–20 Years 20 33.3%
20+ Years 26 43.3%

Based on FMCSA registration date. Average age: 20.0 years.

Company Authority Types
Carrier 60 100.0%

A company may hold multiple authority types simultaneously.

Top 10 Cargo Types
# Cargo Type Companies % of City
1 Grain, Feed & Hay 32 53.3%
2 Livestock 31 51.7%
3 General Freight 15 25.0%
4 Other 12 20.0%
5 Farm Supplies 8 13.3%
6 Dry Bulk Commodities 5 8.3%
7 Metal: Sheets & Coils 5 8.3%
8 Machinery & Large Objects 5 8.3%
9 Construction 4 6.7%
10 Building Materials 3 5.0%
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: July 1, 2026. Active status reflects carriers with FMCSA status code "A" at the time of data collection.