Manufacturing ·NAICS 33151

NAICS 33151 · IRS SOI (C corp) · Census CBP 2023

Ferrous Metal Foundries - Industry Benchmarks

$69,578/yr average annual pay, with 19 SBA loans on record for NAICS 33151.

516
Establishments
57K
Workers employed
$69,578/yr
Avg payroll / employee
$15M
SBA lending, FY20–26

Data updated August 2026

The verdict · NAICS 33151

Michigan leads Ferrous Metal Foundries activity nationally, across 516 establishments employing 57K workers. IRS SOI doesn't publish margin data at this NAICS level.

516
Business establishments (Census)
57K
Workers employed (Census CBP)
$69,578/yr
Avg payroll / employee
$15M
SBA lending, FY20–26

Use Ferrous Metal Foundries's NAICS benchmark as a comparison point, not a forecast for one business.

Ferrous Metal Foundries is reported here with financial measures from IRS Statistics of Income and workforce measures from Census County Business Patterns. The page keeps those source systems distinct, shows unavailable fields rather than estimating them, and links the underlying industry context so readers can compare the same NAICS activity before interpreting a margin or payroll figure.

Source: IRS SOI (C corporation headline) and Census County Business Patterns 2023

Benchmarking Insights for Ferrous Metal Foundries

Ferrous Metal Foundries sits inside Manufacturing.

516 establishments employ 57,092 workers (110.6/location) at $69,578/yr average annual pay. Michigan leads employment, followed by Ohio and Alabama.

Ferrous Metal Foundries sits in the 42nd percentile for employment among 5-digit NAICS industries with reported data.

Employment

57,092

Total employees (Census CBP)

Avg Payroll / Employee

$69,578/yr

Annual compensation

Establishments

516

Business locations

Release-over-release change

What changed from Census CBP 2022 to 2023

Employment increased by 481; establishment count decreased by 30. This comparison uses two published national Census County Business Patterns releases; suppressed fields are omitted rather than estimated.

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Workforce scale

Financial Detail

Annual Payroll (Total)
$4.0B
Avg Employees per Establishment
110.6

Sub-Industries

Industry Profit Margin
Iron Foundries

NAICS 331511

N/A
Steel Foundries (except Investment)

NAICS 331513

N/A
Steel Investment Foundries

NAICS 331512

N/A

Top States by Employment

State Employment
Michigan 4,993
Ohio 4,569
Alabama 4,327
Pennsylvania 3,888
Texas 3,636
California 1,790
Tennessee 1,451
Minnesota 1,386
Washington 1,219
Kansas 1,182

Showing top 10 of 35 states

SBA Lending Activity

SBA FY2020–2026

SBA Loans Approved

19

Total Loan Volume

$15M

Avg Loan Size

$802K

Jobs Supported

389

Program Breakdown

7(a) 18 (95%)
504 1 (5%)

Top SBA Lender

TD Bank, National Association

2 loans in this industry

New Business Share

10.5% of borrowers were new/startup businesses

Annual Lending Trend (6 yrs)

2020
4
2021
2
2022
1
2023
3
2024
5
2025
4

Frequently Asked Questions

How many businesses are in Ferrous Metal Foundries?
516 business establishments. Together they employ 57,092 workers.
What is the average payroll per employee in Ferrous Metal Foundries?
$69,578/yr average annual pay per employee. Businesses average 110.6 employees per establishment.
Which states have the most Ferrous Metal Foundries employment?
Michigan leads with 4,993 workers. Ohio (4,569) and Alabama (4,327) round out the top three.
How much SBA lending does Ferrous Metal Foundries receive?
Ferrous Metal Foundries businesses received 19 SBA loans totaling $15 million between FY2020 and FY2026. The average loan size was $802K. These loans supported 389 jobs at origination. Most lending (95%) came through the SBA 7(a) program.

Nationwide industries with similar benchmark drivers

Two IRS/Census peer sets for Ferrous Metal Foundries, both at NAICS level 5 and excluding this code so the neighborhoods are not self-links.

According to Census County Business Patterns 2023, Ferrous Metal Foundries ranks #321 of 551 U.S. industries at the 5-digit NAICS level by total employment.

Read with this industry: Industry employment trends · Manufacturing · Rankings

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 33151 · CBP 2023 · IRS SOI

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.