Groundwork

Health care · County · California

Medical and dental practices in Lake County, CA

The medical and dental practices in Lake County, CA, the household spending behind them and how the market ranks against other counties.

Groundwork market score · out of 100

Score 50 out of 100: Upper middle

Ranked #1,181 of 2,394 scored counties
#23 of 55 scored counties in California

Listings
161
4 chain locations (2%)
Official establishments
39
−33.9% since 2019
Household spending a year
$31.4M
On medical and dental services · $1,164 a household
Spending per listing
$195K
28% above the U.S.
Listings per 10k households
59.8
29% below the U.S.
Population, 2025
67,772
−0.6% since 2020

See the medical and dental practices around any address in Lake County

The site report maps the medical and dental practices on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Lake County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

Map listings as of September 2026 show 161 medical and dental practices in Lake County. Chain locations make up 2% of them, against 11% across the U.S. That is 59.8 per 10,000 households, 29% below the U.S. rate of 84.5.

At $1,164 per household (10% below the U.S. average), households in Lake County spend about $31.4M a year on medical and dental services. That works out to $195K per practice, 28% above the U.S. figure of $152K.

Official counts show 39 businesses with payroll classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Lake County in 2023, down 33.9% from 2019. That is one for every 691 households, against one for every 270 across the U.S. Official counts also show 27 one-person businesses without payroll.

Population estimates put the population change in Lake County from 2020 to 2025 at −0.6%, against +3.1% for the U.S. For medical and dental practices, Lake County has a Groundwork market score of 50 (upper middle): #1,181 of 2,394 scored counties and #23 of 55 scored counties in California.

How Lake County compares

The same measures for California and the whole U.S. Spending per listing divides a year of household spending on all medical and dental services by the medical and dental practices counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Doctors, dentists and clinics in Lake County, CA compared with California and the U.S.
MeasureLake CountyCaliforniaU.S.
Listings per 10k households59.888.384.5
Spending per listing$195K$166K$152K
Households per official establishment691199270
Official establishment growth, 2019–2023−33.9%+2.6%+1.5%
Population growth, 2020–2025−0.6%−0.4%+3.1%
Spending per household on medical and dental services$1,164$1,464$1,288
Median household income$60,621$99,122$80,734
Groundwork market score5043

Official counts and lending

Businesses

Official establishments, 2019 to 2023
59 → 39−33.9% over the period
Employees, 2023
224
Annual payroll, 2023
$16M
One-person businesses, 2023
27Businesses with no payroll
Map listings, September 2026
1614 chain locations
Listings at the U.S. rate for this spending
206The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
0
Amount
$0

SBA-backed loans to businesses classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Lake County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.

Population and households in Lake County

Population, 2025 estimate
67,772−0.6% since 2020
Households
26,940
Median age
44.9
Homes lived in by their owners
72%
Vehicles per household
2.1
Land area
1,255 sq. mi.
People per square mile
54
Median household income
$60,621+28.9% vs. 2015–2019, before inflation
Average household income
$86,306
Median home value
$324,300
Jobs located here
15,936
Daytime population
61,990Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Lake County?

These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the medical and dental practices on map listings by name and distance.

Or open the report at the center of Lake County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Doctors, dentists and clinics across California

Every California market ranked →

The highest-scoring counties in California for medical and dental practices, numbered among those based in California, with Lake County marked.

Top counties in California

Counties in California ranked for medical and dental practices by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Yuba County, CA856723.4$531K+8.2%#33 of 2,394
2San Benito County, CA808641.8$372K+8.6%#104 of 2,394
3Calaveras County, CA736635.8$367K+2.8%#252 of 2,394
4Trinity County, CA691119.7$566K−2.3%#358 of 2,394
5Colusa County, CA692330.6$407K−0.1%#363 of 2,394
6Madera County, CA6919442.8$296K+7.4%#378 of 2,394
7Mariposa County, CA641621.3$569K−1.2%#557 of 2,394
8Yolo County, CA6441153.6$261K+3.1%#584 of 2,394
9San Joaquin County, CA631,34154.7$253K+5.5%#621 of 2,394
10Lassen County, CA612830.3$383K−13.1%#688 of 2,394
23Lake County, CA5016159.8$195K−0.6%#1,181 of 2,394

Other business types in Lake County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many medical and dental practices are in Lake County, CA?

There are 161 medical and dental practices on map listings in Lake County as of September 2026. 4 of them (2%) are chain locations. The listings count every outpatient clinic and practice, and urgent care. Official counts show 39 businesses with payroll classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in 2023, down 33.9% from 2019. Another 27 one-person businesses have no payroll, by official counts.

How much do households in Lake County, CA spend on medical and dental services?

About $31.4M a year, or $1,164 per household. That is 10% below the U.S. average (an index of 90, where 100 is the U.S. average). Spread across the 161 medical and dental practices on map listings, it comes to $195K per practice. It is estimated from the incomes of the 26,940 households in Lake County and national spending patterns by income.

How does Lake County, CA compare with the U.S. for medical and dental practices?

Lake County has 59.8 medical and dental practices per 10,000 households, 29% below the U.S. rate of 84.5. Spending per practice is $195K, 28% above the U.S. figure of $152K. At the national ratio of medical and dental practices to household spending, Lake County would have about 206, against 161 on map listings. There is one business with payroll in the industry for every 691 households, against one for every 270 across the U.S. The official count fell 33.9% from 2019 to 2023, against +1.5% for the U.S.

How fast is Lake County, CA growing?

Population estimates put Lake County at 67,772 people in 2025, down 0.6% since 2020, against +3.1% for the U.S. It has 26,940 households. Median household income in Lake County is $60,621, 25% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 28.9%, before inflation.

What is the Groundwork market score?

The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. Lake County scores 50 for medical and dental practices (upper middle), #1,181 of 2,394 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Lake County. It maps the medical and dental practices on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.

How the score works · Top markets for medical and dental practices · All 56 business types in Lake County

Screening a site or an acquisition in Lake County?

A site report maps the competitors on map listings near an address and sizes the households and spending around it.

The button opens the report at the center of Lake County. Signed out, you see a blurred preview; on an account, each report is one action.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are estimates for research only. Not investment or real estate advice.