Transportation and Warehousing ·NAICS 48321

NAICS 48321 · IRS SOI 2023 · Census CBP

Inland Water Transportation - Industry Benchmarks

$91,781/yr average annual pay, with 43 SBA loans on record for NAICS 48321.

6.0%
Transportation and Warehousing sector margin
21K
Workers employed
$91,781/yr
Avg payroll / employee
$20M
SBA lending, FY20–26

Data updated July 2026

The verdict · NAICS 48321

Kentucky leads Inland Water Transportation activity nationally. IRS SOI doesn't publish margin data at this NAICS level, but the broader Transportation and Warehousing sector runs a 6.0% net margin.

6.0%
Transportation and Warehousing sector margin (IRS SOI)
21K
Workers employed (Census CBP)
$91,781/yr
Avg payroll / employee
$20M
SBA lending, FY20–26

Benchmarking Insights for Inland Water Transportation

Inland Water Transportation sits inside Transportation and Warehousing, a sector that runs a 6.0% net margin overall.

692 establishments employ 21,136 workers (30.5/location) at $91,781/yr average annual pay. Kentucky leads employment, followed by Mississippi and Illinois.

Employment

21,136

Total employees (Census CBP)

Avg Payroll / Employee

$91,781/yr

Annual compensation

Establishments

692

Business locations

Release-over-release change

What changed from Census CBP 2022 to 2023

Employment increased by 1,680; establishment count increased by 7. This comparison uses two published national Census County Business Patterns releases; suppressed fields are omitted rather than estimated.

Workforce scale

Financial Detail

Annual Payroll (Total)
$1.9B
Avg Employees per Establishment
30.5

Sub-Industries

Industry Profit Margin
Inland Water Freight Transportation

NAICS 483211

N/A
Inland Water Passenger Transportation

NAICS 483212

N/A

Top States by Employment

State Employment
Kentucky 3,168
Mississippi 977
Illinois 655
Virginia 248
Maine 26
Alaska 23
Hawaii 7
Michigan 4

Showing top 10 of 29 states

SBA Lending Activity

SBA FY2020–2026

SBA Loans Approved

43

Total Loan Volume

$20M

Avg Loan Size

$470K

Jobs Supported

392

Program Breakdown

7(a) 39 (91%)
504 4 (9%)

Top SBA Lender

Manufacturers and Traders Trust Company

4 loans in this industry

New Business Share

37.2% of borrowers were new/startup businesses

Annual Lending Trend (6 yrs)

2020
4
2021
5
2022
3
2023
14
2024
9
2025
8

Frequently Asked Questions

How profitable is Inland Water Transportation?
IRS SOI doesn't publish margin data at the NAICS 48321 level. Kentucky leads this industry nationally. The broader Transportation and Warehousing sector runs a 6.0% net margin (IRS SOI 2023).
How many businesses are in Inland Water Transportation?
692 business establishments. Together they employ 21,136 workers.
What is the average payroll per employee in Inland Water Transportation?
$91,781/yr average annual pay per employee. Businesses average 30.5 employees per establishment.
Which states have the most Inland Water Transportation employment?
Kentucky leads with 3,168 workers. Mississippi (977) and Illinois (655) round out the top three.
How much SBA lending does Inland Water Transportation receive?
Inland Water Transportation businesses received 43 SBA loans totaling $20 million between FY2020 and FY2026. The average loan size was $470K. These loans supported 392 jobs at origination. Most lending (91%) came through the SBA 7(a) program.

Comparable industry benchmarks

These links are calculated from the current national dataset. They are comparison paths, not recommendations or evidence that businesses operate alike.

How this ranks: Its Census employment total exceeds 18% of that same 551-industry cohort. Calculated by ranking this industry's reported value against every other industry at the same NAICS digit-level, not the whole dataset: comparing a 6-digit detail industry to a 2-digit sector would mix incompatible scales.

Closest workforce scale

Same NAICS detail level, ordered by the smallest difference in reported Census employment.

Benchmarking Inland Water Transportation

Disclaimer: Public IRS/Census data, not financial or tax advice. See our full disclaimer.

Sources: IRS Statistics of Income (SOI) Business Tax Statistics · Census Bureau County Business Patterns 2023

NAICS 48321 · Data year: 2023

According to the U.S. Census Bureau, which released its 2023 County Business Patterns dataset in June 2025, PlainBizBench benchmarks 2,002 U.S. industries against Internal Revenue Service Statistics of Income data. See our methodology for the full compilation process.

Source: U.S. Census Bureau, County Business Patterns / SUSB Industry employment scale, payroll, and firm-size benchmarks · 2023

Every figure on PlainBizBench is rendered directly from federal source data, no number is typed in by an editor. This page aggregates profit-margin, payroll, entity-type, and SBA-lending benchmarks for this industry, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.

Disclaimer: Public IRS/Census data, not financial or tax advice. See our full disclaimer.