National Methadone ClinicsKey Numbers
- Listed treatment facilities
- 2,784closed listings excluded
- Facilities per 100,000 residents
- 7.042020 Census population
- Treatment deserts
- 1of 58 counties have no listed facility
- Residents of treatment deserts
- 8,700people in zero-facility counties
- Accept Medicaid
- 21.4%595 of 2,784 listed facilities
- Population
- 39,538,2232020 Census
Last updated , when the source report was generated.
These figures count listed facilities, not capacity or quality: a listing does not show how many people a facility can treat, how soon, or how well.
How the State Compares
Treatment Deserts
1 county has no listed treatment facility. Distances are straight-line miles to the nearest listed facility.
| County | Population | Nearest listed facility (miles) |
|---|---|---|
| Modoc County | 8,700 | 45.5 |
Desert Counties by Population
All Counties, Ranked
| Rank | County | Population | Listed facilities | Per 100,000 | Status |
|---|---|---|---|---|---|
| 1 | Alpine County | 1,204 | 1 | 83.06 | |
| 2 | Sierra County | 3,236 | 2 | 61.80 | |
| 3 | Trinity County | 16,112 | 3 | 18.62 | |
| 4 | Mariposa County | 17,131 | 3 | 17.51 | |
| 5 | Siskiyou County | 44,076 | 7 | 15.88 | |
| 6 | Inyo County | 19,016 | 3 | 15.78 | |
| 7 | Mendocino County | 91,601 | 14 | 15.28 | |
| 8 | Marin County | 262,321 | 36 | 13.72 | |
| 9 | Calaveras County | 45,292 | 6 | 13.25 | |
| 10 | Lake County | 68,163 | 9 | 13.20 | |
| 11 | Shasta County | 182,155 | 24 | 13.18 | |
| 12 | Sutter County | 99,633 | 13 | 13.05 | |
| 13 | Tuolumne County | 55,620 | 7 | 12.59 | |
| 14 | El Dorado County | 191,185 | 23 | 12.03 | |
| 15 | Humboldt County | 136,463 | 15 | 10.99 | |
| 16 | San Benito County | 64,209 | 7 | 10.90 | |
| 17 | Orange County | 3,186,989 | 337 | 10.57 | |
| 18 | Glenn County | 28,917 | 3 | 10.37 | |
| 19 | Yuba County | 81,575 | 8 | 9.81 | |
| 20 | Nevada County | 102,241 | 10 | 9.78 | |
| 21 | Los Angeles County | 10,014,009 | 975 | 9.74 | |
| 22 | Kings County | 152,486 | 14 | 9.18 | |
| 23 | Ventura County | 843,843 | 73 | 8.65 | |
| 24 | Placer County | 404,739 | 35 | 8.65 | |
| 25 | Butte County | 211,632 | 17 | 8.03 | |
| 26 | Sonoma County | 488,863 | 38 | 7.77 | |
| 27 | Mono County | 13,195 | 1 | 7.58 | |
| 28 | Santa Cruz County | 270,861 | 19 | 7.01 | |
| 29 | San Diego County | 3,298,634 | 231 | 7.00 | |
| 30 | Santa Barbara County | 448,229 | 31 | 6.92 | |
| 31 | Riverside County | 2,418,185 | 153 | 6.33 | |
| 32 | Tulare County | 473,117 | 27 | 5.71 | |
| 33 | Sacramento County | 1,585,055 | 84 | 5.30 | |
| 34 | Kern County | 909,235 | 48 | 5.28 | |
| 35 | Fresno County | 1,008,654 | 53 | 5.25 | |
| 36 | Monterey County | 439,035 | 23 | 5.24 | |
| 37 | Napa County | 138,019 | 7 | 5.07 | |
| 38 | Plumas County | 19,790 | 1 | 5.05 | |
| 39 | San Francisco County | 873,965 | 44 | 5.03 | |
| 40 | San Luis Obispo County | 282,424 | 14 | 4.96 | |
| 41 | Amador County | 40,474 | 2 | 4.94 | |
| 42 | Colusa County | 21,839 | 1 | 4.58 | |
| 43 | Tehama County | 65,829 | 3 | 4.56 | |
| 44 | Contra Costa County | 1,165,927 | 51 | 4.37 | |
| 45 | Merced County | 281,202 | 12 | 4.27 | |
| 46 | Yolo County | 216,403 | 9 | 4.16 | |
| 47 | Solano County | 453,491 | 18 | 3.97 | |
| 48 | San Bernardino County | 2,181,654 | 84 | 3.85 | |
| 49 | Madera County | 156,255 | 6 | 3.84 | |
| 50 | Del Norte County | 27,743 | 1 | 3.60 | |
| 51 | San Joaquin County | 779,233 | 27 | 3.46 | |
| 52 | Alameda County | 1,682,353 | 58 | 3.45 | |
| 53 | Stanislaus County | 552,878 | 19 | 3.44 | |
| 54 | Imperial County | 179,702 | 6 | 3.34 | |
| 55 | San Mateo County | 764,442 | 25 | 3.27 | |
| 56 | Lassen County | 32,730 | 1 | 3.06 | |
| 57 | Santa Clara County | 1,936,259 | 42 | 2.17 | |
| 58 | Modoc County | 8,700 | 0 | 0.00 | Treatment desert |
Methodology
Every number on this page is calculated directly from public records; no figure is estimated or written by hand.
Facilities are the treatment locations listed in SAMHSA's FindTreatment.gov locator, each counted once by its listing ID. Closed listings are excluded; active and unconfirmed listings are included (unique IDs; closed excluded; active and unconfirmed included).
Density divides the number of listed facilities by the 2020 Census resident population and multiplies by 100,000.
A treatment desert is a county with zero listed facilities. Facilities are placed in counties by their coordinates against Census county boundaries; deserts are only reported when every listed facility in the state has a verified county.
The Medicaid share is the number of listed facilities that report accepting Medicaid divided by all listed facilities; facilities that do not report it count as not confirmed.
Distances are straight-line (great-circle) miles from a county's Census reference point to the nearest geocoded listed facility in any state. They are not driving distances.
These are listed facilities, not capacity or quality: counts describe listings, not beds, wait times, outcomes or proof of access to care.
Known Gaps in This Data
- None reported for this state.
Sources and Reuse
- SAMHSA FindTreatment.gov treatment locator (Substance Abuse and Mental Health Services Administration): Listed treatment facilities, operating status and Medicaid acceptance.
- 2020 Census redistricting data (P.L. 94-171), table P1 (U.S. Census Bureau): State and county resident population (2020).
- 2020 cartographic boundary files, counties (1:500,000) (U.S. Census Bureau): County boundaries for assigning facilities to counties and for the county map.
- 2020 Census Gazetteer files, counties (U.S. Census Bureau): County reference points for nearest-facility distances.
Download this data: County table (CSV) · Full data (JSON)
Licence: this data and its charts are published under the Creative Commons Attribution 4.0 (CC BY 4.0) licence. You may copy, share and adapt them, including commercially. Attribution: credit National Methadone Clinics and link to the source page, https://nationalmethadoneclinics.com/data/california/.