Diagnostic Centers - Growth for Education through Information

Regions

The three Diagnostic Centers serve the 58 counties of California by region (North, Central, South).

Regional map displaying the California Counties served by each Diagnostic Center (i.e., DCN, DCC and DCS) as listed below.

Diagnostic Center North (DCN)

DCN is located in Fremont, California and serves the following counties:

  • Alameda
  • Alpine
  • Butte
  • Colusa
  • Contra Costa
  • Del Norte
  • El Dorado
  • Glenn
  • Humbolt
  • Lake
  • Lassen
  • Marin
  • Mendocino
  • Modoc
  • Monterey
  • Napa
  • Nevada
  • Placer
  • Plumas
  • Sacramento
  • San Bento
  • San Francisco
  • San Mateo
  • Santa Clara
  • Santa Cruz
  • Shasta
  • Sierra
  • Siskiyou
  • Solano
  • Sonoma
  • Sutter
  • Tehama
  • Trinity
  • Yolo
  • Yuba

Diagnostic Center Central (DCC)

DCC is located in Fresno, California and serves the following counties:

  • Amador
  • San Joauin
  • Calaveras
  • Stanislaus
  • Tuolumne
  • Merced
  • Mariposa
  • Madera
  • Fresno
  • Kings
  • Tulare
  • San Luis Obispo
  • Kern (North West)

Diagnostic Center South (DCS)

DCS is located in Los Angeles, California and serves the following counties:

  • Mono
  • Inyo
  • Kern (South East)
  • Santa Barbara
  • Ventura
  • Los Angeles
  • San Bernardino
  • Riverside
  • Orange
  • San Diego
  • Imperial