Contra Costa County social worker salary, 2025

380 people worked as social workers for Contra Costa County in 2025. Those who worked the full year took home an average of $118,258.

What is the average social worker salary at Contra Costa County?

Official pay range, children's social workers1

$95,124 to $139,833

from the lowest entry salary to the top of the highest title for children's social workers, the largest group

Average take-home, full-year social workers1

$118,258

average base pay $111,975

The largest group of Contra Costa County's social workers (110 of 380) hold the title Social Worker III, with an official range of $101,448 to $123,310. Those who worked the full year took home an average of $125,712, $2,402 above the top of the range.

Social workers
380
290 of them worked the full year
Starting salary
$81,578
bottom of the Soc Svc Employment Place Cnsl range
Median take-home
$118,004
the middle social worker: half took home more, half less
Average pay rank
11th
of 63 California employers

What does each social worker title at Contra Costa County pay?

Each bar is the official range for one title, lowest first. The dot marks the average take-home of full-year staff in that title, where at least 5 people stand behind it.1

Children's social workers

  1. Social Worker II$95,124 to $104,875 · 44 people
    $104,915
  2. Social Worker III$101,448 to $123,310 · 110 people
    $125,712
  3. Social Work Supvsr II$115,041 to $139,833 · 42 people
    $143,777

General social workers

  1. Soc Svc Employment Place Cnsl$81,578 to $99,158 · fewer than 5 people
    fewer than 5
  2. Social Worker$84,551 to $102,773 · 82 people
    $101,812
  3. Soc Svc Sr Welf Fraud Fld Invs$90,103 to $109,521 · fewer than 5 people
    fewer than 5
  4. Forensic Social Worker$95,124 to $104,875 · fewer than 5 people
    fewer than 5
  5. Forensic Social Worker-Project$95,124 to $104,875 · fewer than 5 people
    fewer than 5
  6. Social Work Supervisor I$97,895 to $118,992 · 8 people
    $121,067
  7. Senior Forensic Social Worker$101,448 to $123,310 · fewer than 5 people
    fewer than 5
  8. Social Worker III$101,448 to $123,310 · 27 people
    $120,090
  9. Sr Forensic Social Worker-Project$101,448 to $123,310 · fewer than 5 people
    fewer than 5
  10. Social Work Supvsr II$115,041 to $139,833 · fewer than 5 people
    fewer than 5

Medical social workers

  1. Medical Social Worker II$98,674 to $119,939 · 50 people
    $118,357

official range average take-home, full year. "Fewer than 5" means too few full-year people in that title to show.

Does Contra Costa County pay social workers more than the counties next door?

Average take-home of full-year social workers: Contra Costa County next to its neighboring counties and the whole state.1

4 of Contra Costa County's 7 neighboring counties pay more.

Where does Contra Costa County rank among California employers?

Every employer with at least 5 full-year social workers, by average take-home.1

All 63 California employers

Contra Costa County ranks 11th of 63, above the middle employer.

Contra Costa County
$60k$80k$100k$120k$140k

Middle employer: $90,154

Each bar counts the employers whose average take-home falls in a $5,000 band. The dashed line marks the middle employer.

Pension and health cover at Contra Costa County

As reported by the county. Contributions are what the employer paid per full-year social worker, on top of wages.1

Pension formula
2.5% at 67
the most common formula among Contra Costa County's social workers
Employer pension contribution
$23,836
average per year
Health, dental and vision
$22,137
average paid by the employer per year

Questions about social worker pay at Contra Costa County

What is the average social worker salary at Contra Costa County?

Social workers at Contra Costa County who worked the full year took home an average of $118,258 in 2025. The middle social worker took home $118,004: half took home more, half less. The official pay range across its social worker titles runs from $95,124 to $139,833.

How much overtime do social workers at Contra Costa County earn?

Full-year social workers were paid an average of $1,690 in overtime in 2025. The middle one was paid $0: a few people with a lot of overtime pull the average up.

What pension do social workers at Contra Costa County get?

The most common pension formula among Contra Costa County's social workers is 2.5% at 67, as reported by the county. The employer paid an average of $23,836 a year into the pension plan.

More public pay in Contra Costa County

Sources for the Contra Costa County figures

Every person who held a social worker position at Contra Costa County at any point in 2025 counts toward the headcount. Pay figures use only people who worked roughly the full year: those whose regular pay reached at least 90% of the bottom of their official range. Take-home is total wages, including overtime, lump sums and other pay. Averages lead; the median take-home is the middle person's, with half above and half below, and is less pulled by a few people with a lot of overtime. Every figure covers at least 5 people.

  1. State Controller's Office, Government Compensation in California, 2025: positions, official pay ranges, wages, pension formula and employer contributions as reported by Contra Costa County.

How we read the data