Market Data

How Many Law Firms Are in St. Louis, MO? (2026 Data)

How many law firms are in St. Louis, MO? There are 1410 (50.4 per 100,000 residents) — saturated vs. the typical U.S. metro. See the local market data and how to win it.

Updated 2026

St. Louis, MO · pop. 2,796,999 1,410 law firms in this metro - 50.4 per 100,000 residents
50.4per 100k here
39.4typical U.S. metro
+28%vs. typical metro
Market verdict saturated More law firms per capita than most metros - competition is high, so marketing and differentiation matter most here.

Law Firms per 100,000 residents

St. Louis, MO50.4Typical U.S. metro39.4U.S. average52.9

Saturation vs. all 387 U.S. metros

St. Louis · #293Least saturated (opportunity)Most saturated

St. Louis ranks #293 of 387 - more saturated than 76% of U.S. metros.

What the data says about the St. Louis law firms market

According to U.S. Census Bureau data, there are 1,410 law firms serving the St. Louis, MO-IL area (population 2,796,999) - 50.4 per 100,000 residents. That's +28% above the typical U.S. metro (39.4 per 100k), making St. Louis more saturated than 76% of the 387 metros we track.

For context, the national average is 52.9 per 100k - higher than the typical metro because dense urban areas pull it up. The St. Louis, MO-IL population grew -0.8% from 2020 to 2023, a signal of flat local demand.

Should you open a law firm in St. Louis?

It's a competitive market. St. Louis has more law firms per capita than 76% of U.S. metros. With -0.8% population growth, demand is roughly flat - so you win here on differentiation and marketing, not by being the only option.

A saturated law firm market with little population growth is a share-steal game, not a rising-tide one.

How to win the St. Louis market with AI

Market data tells you the playing field. Winning it is about marketing - and that's where most law firms leave money on the table. Here's the high-ROI playbook:

  • Own local search. Optimize your Google Business Profile and local SEO so you show up in the map pack for "law firm near me."
  • Capture every lead. Most law firms miss 20-30% of calls. AI call capture turns those into booked customers.
  • Compound with reviews and content. Use AI to systematize reviews, follow-up, and local content.

See the full playbook for your industry: AI marketing for law firms.

St. Louis law firms market - FAQ

How many law firms are there in St. Louis, MO?

There are 1,410 law firms in the St. Louis, MO-IL area, about 50.4 per 100,000 residents.

Is St. Louis, MO a good place to open a law firm?

St. Louis ranks #293 of 387 U.S. metros by law firms per capita (saturated). With 50.4 per 100,000 residents and -0.8% population growth since 2020, it's a competitive market for a well-marketed law firm.

Is the St. Louis law firms market saturated?

St. Louis has 50.4 law firms per 100,000 residents versus a U.S. median of 39.4. That is saturated, more saturated than 76% of U.S. metros.

How fast is St. Louis, MO growing?

The St. Louis, MO-IL metro population grew -0.8% from 2020 to 2023, to about 2,796,999 residents.