Employment
N/A
Total employees (Census CBP)
Administrative and Support and Waste Management ·NAICS 561431
NAICS 561431 · IRS SOI 2023 · Census CBP
Private Mail Centers - Industry Benchmarks
900 SBA loans on record, $321M in volume, for NAICS 561431.
- 5.6%
- Administrative and Support and Waste Management sector margin
- N/A
- Workers employed
- N/A
- Avg payroll / employee
- $321M
- SBA lending, FY20–26
Data updated July 2026
The verdict · NAICS 561431
South Carolina leads Private Mail Centers activity nationally. IRS SOI doesn't publish margin data at this NAICS level, but the broader Administrative and Support and Waste Management sector runs a 5.6% net margin.
- 5.6%
- Administrative and Support and Waste Management sector margin (IRS SOI)
- N/A
- Workers employed (Census CBP)
- N/A
- Avg payroll / employee
- $321M
- SBA lending, FY20–26
Benchmarking Insights for Private Mail Centers
Private Mail Centers sits inside Administrative and Support and Waste Management, a sector that runs a 5.6% net margin overall.
7,614 establishments employ N/A workers. South Carolina leads employment, followed by Mississippi and Montana.
Avg Payroll / Employee
N/A
Annual compensation
Establishments
7,614
Business locations
Release-over-release change
What changed from Census CBP 2022 to 2023
establishment count increased by 2,010. This comparison uses two published national Census County Business Patterns releases; suppressed fields are omitted rather than estimated.
Financial Detail
Top States by Employment
| State | Employment |
|---|---|
| South Carolina | 471 |
| Mississippi | 220 |
| Montana | 165 |
| Delaware | 101 |
| Maine | 83 |
Showing top 10 of 51 states
SBA Lending Activity
SBA FY2020–2026SBA Loans Approved
900
Total Loan Volume
$321M
Avg Loan Size
$357K
Jobs Supported
5,870
Program Breakdown
7(a) 895 (99%)
504 5 (1%)
Top SBA Lender
The Huntington National Bank
148 loans in this industry
New Business Share
55.0% of borrowers were new/startup businesses
Annual Lending Trend (7 yrs)
2020 45
2021 109
2022 138
2023 188
2024 162
2025 220
2026 38
Frequently Asked Questions
How profitable is Private Mail Centers?
IRS SOI doesn't publish margin data at the NAICS 561431 level. South Carolina leads this industry nationally. The broader Administrative and Support and Waste Management sector runs a 5.6% net margin (IRS SOI 2023).
How many businesses are in Private Mail Centers?
7,614 business establishments.
What is the average payroll per employee in Private Mail Centers?
Average payroll data for Private Mail Centers is not available in the current Census CBP dataset.
Which states have the most Private Mail Centers employment?
South Carolina leads with 471 workers. Mississippi (220) and Montana (165) round out the top three.
How much SBA lending does Private Mail Centers receive?
Private Mail Centers businesses received 900 SBA loans totaling $321 million between FY2020 and FY2026. The average loan size was $357K. These loans supported 5,870 jobs at origination. Most lending (99%) came through the SBA 7(a) program.
Benchmarking Private Mail Centers
- No margin data, check the parent industry. Browse Administrative and Support and Waste Management
- 7,614 establishments, N/A workers. Payroll benchmarks
- 900 SBA loans on record. SBA lending 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 561431 · 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.
Disclaimer: Public IRS/Census data, not financial or tax advice. See our full disclaimer.