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Law firm data

Law firms in Jefferson County, Missouri

We counted 22 law firms, all with a website we read.

The Census Bureau counts 31 law offices with paid employees here (County Business Patterns 2023). Our count equals about 71% of that. Page updated November 11, 2026.

What these numbers say

Jefferson County holds 22 of the 1,307 firms we counted in Missouri (2%). It ranks 10th among the 18 areas of the state with a firm page.

We read the website of 22 of its 22 firms (100%).

With 229,458 residents, that is about 1 firm counted per 10,000 residents. The federal count is 1.42 law offices per 10,000 residents.

On the websites we read here, the practices advertised most are family law, personal injury and criminal defense. Across the state, the most advertised is personal injury.

This page joins our dataset of law firm websites (November 9, 2026) with official state registries and the Census Bureau's County Business Patterns 2023 counts. How this data is built and checked.

Practices advertised on the websites read

Firms with an office here

Names appear as the firm’s site or the registry gives them, and can include a lawyer’s name. A row that is only one person’s name, or a registry status such as “retired”, is counted above and not listed here.

Jefferson County in figures

Residents, law offices and the demand agencies count in this county, from the open datasets behind the market pages.

MeasureValuePeriodPlaceSource
Bankruptcy cases filed528
cases, 12 months		12 months ending 2026-09-30Jefferson County, MO
county		bankruptcy v2.0.0 doi:10.5281/zenodo.23962892
record bankruptcy-29099 · status P · checked 2026-10-28
Fatal crashes25
crashes		2024Jefferson County, MO
county		fatal-crashes v2.0.0 doi:10.5281/zenodo.23963480
record fatal-crashes:29099 · status P · checked 2026-10-27
Federal civil cases filed by county of the plaintiff: employment1
cases filed, fiscal year		FY2025Jefferson County, MO
county		federal-filings-county v2.0.1 doi:10.5281/zenodo.24024299
record federal-filings-county:29099 · status P · checked 2026-10-28
Federal civil cases filed by county of the plaintiff: personal injury2
cases filed, fiscal year		FY2025Jefferson County, MO
county		federal-filings-county v2.0.1 doi:10.5281/zenodo.24024299
record federal-filings-county:29099 · status P · checked 2026-10-28
Law offices per 10,000 residents1.42
per 10,000 residents		2026-Q1Jefferson County, MO
county		law-offices v2.0.0 doi:10.5281/zenodo.23963687
record law-offices-29099 · status P · checked 2026-10-28
Self-employed lawyers (nonemployer firms)77
firms		latest Nonemployer Statistics yearJefferson County, MO
county		law-offices v2.0.0 doi:10.5281/zenodo.23963687
record law-offices-29099 · status P · checked 2026-10-28
Private law offices33
establishments		2026-Q1Jefferson County, MO
county		law-offices v2.0.0 doi:10.5281/zenodo.23963687
record law-offices-29099 · status P · checked 2026-10-28
Residents229,458
residents		2020-2024Jefferson County, MO
county		legal-need v1.1.1 doi:10.5281/zenodo.23957291
record legal-need-29099 · status P · checked 2026-10-31
Spanish speakers with limited English664 ±255
people age 5+		2020-2024Jefferson County, MO
county		legal-need v1.1.1 doi:10.5281/zenodo.23957291
record legal-need-29099 · status P · checked 2026-10-31
Veterans12,928 ±776
civilians age 18+		2020-2024Jefferson County, MO
county		legal-need v1.1.1 doi:10.5281/zenodo.23957291
record legal-need-29099 · status P · checked 2026-10-31

Data and licences

Firm rows: CSV downloads under the Open Database License 1.0 (ODbL), with © OpenStreetMap contributors. Counts by state, county and practice: CC BY 4.0 dataset.

A firm can ask for a correction or to be left out on the data corrections page; we act within 7 days.

What each fact means

Practices
Practice areas the firm names on its own site: links, headings or practice pages.
Spanish pages
A Spanish version of the site, a page read in Spanish, or a link labelled Español.
24/7 intake
The site says it answers around the clock (for example "available 24/7").
Free consultation
The site offers a free consultation or case review.
No fee unless they win
The site states a contingency fee or no fee unless the case is won.
Chat, booking
A chat tool or an online booking tool on the site.
Structured data
schema.org LegalService or Attorney markup on the pages read.
Registry firm
Listed in an official state registry; the registry facts are shown.
Checked
The date we last read the firm's site or the registry.

A label appears on a firm's card when its own site says so, and links to the page we read it on when we kept that page. These are statements on websites, not ratings: we never score or rank a firm. A firm can ask for a correction or to be left out on the data corrections page; we act within 7 days.