Profit Margin
3.6%
Net income ÷ total receipts (IRS SOI)
Transportation and Warehousing ·NAICS 483
NAICS 483 · IRS SOI 2023 · Census CBP
$108,243/yr average annual pay, with 86 SBA loans on record for NAICS 483.
Data updated July 2026
The verdict · NAICS 483
Water Transportation runs a 3.6% pre-tax net margin - below the national median - across 2K establishments employing 63K workers.
Water Transportation sits inside Transportation and Warehousing at a 3.6% net margin (below the national median), $32.9B in aggregate receipts across 11,805 returns, averaging $2.8B per establishment.
1,790 establishments employ 62,806 workers (35.1/location) at $108,243/yr average annual pay. Louisiana leads employment, followed by Washington and Kentucky.
Profit Margin
3.6%
Net income ÷ total receipts (IRS SOI)
Total Receipts
$32.9B
Annual revenue (IRS SOI)
Net Income
$1.2B
Pre-tax net income
Employment
62,806
Total employees (Census CBP)
Avg Payroll / Employee
$108,243/yr
Annual compensation
Establishments
1,790
Business locations
Release-over-release change
Employment increased by 2,171; establishment count increased by 10. This comparison uses two published national Census County Business Patterns releases; suppressed fields are omitted rather than estimated.
p25/median/p75 = 3%/5%/8%
How businesses in this industry are legally structured (IRS SOI)
Margin: 4.1% · Receipts: $31.4B
Margin: -6.6% · Receipts: $1.5B
| Industry | Profit Margin |
|---|---|
| Deep Sea, Coastal, and Great Lakes Water Transportation NAICS 4831 | N/A |
| Inland Water Transportation NAICS 4832 | N/A |
| State | Employment |
|---|---|
| Louisiana | 10,246 |
| Washington | 5,077 |
| Kentucky | 3,168 |
| New York | 2,520 |
| Alaska | 1,165 |
| New Jersey | 1,048 |
| Mississippi | 985 |
| Illinois | 740 |
| Michigan | 545 |
| Minnesota | 187 |
Showing top 10 of 36 states
SBA Loans Approved
86
Total Loan Volume
$49M
Avg Loan Size
$572K
Jobs Supported
821
Top SBA Lender
Manufacturers and Traders Trust Company
9 loans in this industry
New Business Share
33.7% of borrowers were new/startup businesses
These links are calculated from the current national dataset. They are comparison paths, not recommendations or evidence that businesses operate alike.
How this ranks: Water Transportation reports a higher net margin than 28% of the 79 IRS-tracked industries at the same NAICS detail level. Its Census employment total exceeds 8% of that same 77-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.
Same NAICS detail level, ordered by the smallest difference in reported IRS pre-tax margin.
Same NAICS detail level, ordered by the smallest difference in reported Census employment.
Benchmarking Water Transportation
Sources: IRS Statistics of Income (SOI) Business Tax Statistics · Census Bureau County Business Patterns 2023
NAICS 483 · 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.
Read our methodology - how this data is sourced, computed, and verified.
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.