Health Care and Social Assistance ·NAICS 621493

NAICS 621493 · IRS SOI (C corp) · Census CBP 2023

Freestanding Ambulatory Surgical and Emergency Centers - Industry Benchmarks

$63,696/yr average annual pay, with 184 SBA loans on record for NAICS 621493.

5.3%
Health Care and Social Assistance sector margin
196K
Workers employed
$63,696/yr
Avg payroll / employee
$243M
SBA lending, FY20–26

Data updated August 2026

The verdict · NAICS 621493

Texas leads Freestanding Ambulatory Surgical and Emergency Centers activity nationally. IRS SOI doesn't publish margin data at this NAICS level, but the broader Health Care and Social Assistance sector runs a 5.3% net margin.

5.3%
Health Care and Social Assistance sector margin (IRS SOI)
196K
Workers employed (Census CBP)
$63,696/yr
Avg payroll / employee
$243M
SBA lending, FY20–26

Use Freestanding Ambulatory Surgical and Emergency Centers's NAICS benchmark as a comparison point, not a forecast for one business.

Freestanding Ambulatory Surgical and Emergency Centers 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 Freestanding Ambulatory Surgical and Emergency Centers

Freestanding Ambulatory Surgical and Emergency Centers sits inside Health Care and Social Assistance, a sector that runs a 5.3% net margin overall.

10,042 establishments employ 196,178 workers (19.5/location) at $63,696/yr average annual pay. Texas leads employment, followed by California and Florida.

Freestanding Ambulatory Surgical and Emergency Centers sits in the 85th percentile for employment among 6-digit NAICS industries with reported data.

Employment

196,178

Total employees (Census CBP)

Avg Payroll / Employee

$63,696/yr

Annual compensation

Establishments

10,042

Business locations

Release-over-release change

What changed from Census CBP 2022 to 2023

Employment increased by 1,558; establishment count decreased by 151. 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)
$12.5B
Avg Employees per Establishment
19.5

Top States by Employment

State Employment
Texas 21,622
California 18,272
Florida 15,558
New York 8,933
Arizona 7,905
Georgia 7,596
Michigan 7,381
Pennsylvania 6,266
New Jersey 6,253
North Carolina 6,205

Showing top 10 of 51 states

SBA Lending Activity

SBA FY2020–2026

SBA Loans Approved

184

Total Loan Volume

$243M

Avg Loan Size

$1322K

Jobs Supported

3,168

Program Breakdown

7(a) 166 (90%)
504 18 (10%)

Top SBA Lender

Citizens Bank

20 loans in this industry

New Business Share

67.4% of borrowers were new/startup businesses

Annual Lending Trend (7 yrs)

2020
15
2021
42
2022
26
2023
37
2024
33
2025
27
2026
4

View SBA lending rankings →

Frequently Asked Questions

How profitable is Freestanding Ambulatory Surgical and Emergency Centers?
IRS SOI doesn't publish margin data at the NAICS 621493 level. Texas leads this industry nationally. The broader Health Care and Social Assistance sector runs a 5.3% net margin (IRS SOI 2013 C corp).
How many businesses are in Freestanding Ambulatory Surgical and Emergency Centers?
10,042 business establishments. Together they employ 196,178 workers.
What is the average payroll per employee in Freestanding Ambulatory Surgical and Emergency Centers?
$63,696/yr average annual pay per employee. Businesses average 19.5 employees per establishment.
Which states have the most Freestanding Ambulatory Surgical and Emergency Centers employment?
Texas leads with 21,622 workers. California (18,272) and Florida (15,558) round out the top three.
How much SBA lending does Freestanding Ambulatory Surgical and Emergency Centers receive?
Freestanding Ambulatory Surgical and Emergency Centers businesses received 184 SBA loans totaling $243 million between FY2020 and FY2026. The average loan size was $1322K. These loans supported 3,168 jobs at origination. Most lending (90%) came through the SBA 7(a) program.

Nationwide industries with similar benchmark drivers

Two IRS/Census peer sets for Freestanding Ambulatory Surgical and Emergency Centers, both at NAICS level 6 and excluding this code so the neighborhoods are not self-links.

According to Census County Business Patterns 2023, Freestanding Ambulatory Surgical and Emergency Centers ranks #120 of 801 U.S. industries at the 6-digit NAICS level by total employment.

Read with this industry: Industry employment trends · Health Care and Social Assistance · 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 621493 · 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.

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.