County of Contra Costa: Single Audit Reports and Findings
County of Contra Costa filed 10 single audits between 2016 and 2025; the most recently observed auditor is MACIAS GINI & O'CONNELL LLP (2025), and the 2025 report lists 0 findings. Data as of 2026-09-18.
Data as of Sep 18, 2026 · Source: Federal Audit Clearinghouse (public data)
Single audits by year
One row per audit year as the Federal Audit Clearinghouse accepted it. The auditor named is the one observed on that filing; County of Contra Costa is recorded in MARTINEZ, California under EIN 946000509, and the Clearinghouse records it as a local government.
| Audit year | Fiscal year end | Federal expended | Threshold applied | Auditor observed | Findings | MW / SD | FAC report |
|---|---|---|---|---|---|---|---|
| 2025 | 2025-06-30 | $363,517,548 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 0 | — | 2025-06-GSAFAC-0000412833 |
| 2024 | 2024-06-30 | $440,762,197 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 0 | — | 2024-06-GSAFAC-0000362588 |
| 2023 | 2023-06-30 | $421,360,721 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 9 | SD | 2023-06-GSAFAC-0000035928 |
| 2022 | 2022-06-30 | $408,479,511 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 2 | MW | 2022-06-CENSUS-0000131822 |
| 2021 | 2021-06-30 | $448,586,205 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 0 | — | 2021-06-CENSUS-0000131822 |
| 2020 | 2020-06-30 | $365,030,371 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 0 | — | 2020-06-CENSUS-0000131822 |
| 2019 | 2019-06-30 | $265,163,691 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 0 | — | 2019-06-CENSUS-0000131822 |
| 2018 | 2018-06-30 | $266,841,178 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 1 | SD | 2018-06-CENSUS-0000131822 |
| 2017 | 2017-06-30 | $269,018,329 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 0 | — | 2017-06-CENSUS-0000131822 |
| 2016 | 2016-06-30 | $269,163,075 | $3,000,000 | MACIAS GINI & O'CONNELL LLP | 4 | SD | 2016-06-CENSUS-0000131822 |
Which federal programs did this organization report?
From the most recent accepted report. "Major" is the designation the auditor made under 2 CFR 200.518, not ours.
| ALN | Program | Expended | Major |
|---|---|---|---|
| 93.778 | GRANTS TO STATES FOR MEDICAID | $35,255,963 | Yes |
| 10.561 | STATE ADMINISTRATIVE MATCHING GRANTS FOR THE SUPPLEMENTAL NUTRITION ASSISTANCE PROGRAM | $27,846,844 | No |
| 93.558 | TEMPORARY ASSISTANCE FOR NEEDY FAMILIES | $24,820,121 | No |
| 93.558 | TEMPORARY ASSISTANCE FOR NEEDY FAMILIES | $17,319,935 | No |
| 97.036 | DISASTER GRANTS - PUBLIC ASSISTANCE (PRESIDENTIALLY DECLARED DISASTERS) | $14,515,020 | No |
| 93.778 | GRANTS TO STATES FOR MEDICAID | $14,085,923 | Yes |
| 93.563 | CHILD SUPPORT SERVICES | $12,709,951 | No |
| 93.659 | ADOPTION ASSISTANCE | $11,286,484 | Yes |
| 93.600 | Head Start | $10,897,428 | No |
| 93.558 | TEMPORARY ASSISTANCE FOR NEEDY FAMILIES | $10,016,371 | No |
| 93.778 | GRANTS TO STATES FOR MEDICAID | $8,882,574 | Yes |
| 93.658 | FOSTER CARE TITLE IV-E | $7,969,374 | Yes |
| 10.557 | WIC SPECIAL SUPPLEMENTAL NUTRITION PROGRAM FOR WOMEN, INFANTS, AND CHILDREN | $6,358,398 | No |
| 20.205 | HIGHWAY PLANNING AND CONSTRUCTION | $5,361,165 | No |
| 93.600 | Head Start | $5,360,905 | No |
| 97.036 | DISASTER GRANTS - PUBLIC ASSISTANCE (PRESIDENTIALLY DECLARED DISASTERS) | $5,256,138 | No |
| 14.239 | HOME INVESTMENT PARTNERSHIPS PROGRAM | $4,983,454 | No |
| 93.667 | SOCIAL SERVICES BLOCK GRANT | $4,818,681 | No |
| 93.558 | TEMPORARY ASSISTANCE FOR NEEDY FAMILIES | $4,697,288 | No |
| 93.778 | GRANTS TO STATES FOR MEDICAID | $4,336,569 | Yes |
| 14.239 | HOME INVESTMENT PARTNERSHIPS PROGRAM | $4,154,927 | No |
| 97.036 | DISASTER GRANTS - PUBLIC ASSISTANCE (PRESIDENTIALLY DECLARED DISASTERS) | $3,649,683 | No |
| 14.218 | COMMUNITY DEVELOPMENT BLOCK GRANTS/ENTITLEMENT GRANTS | $3,384,522 | No |
| 97.083 | STAFFING FOR ADEQUATE FIRE AND EMERGENCY RESPONSE (SAFER) | $3,266,829 | No |
| 93.558 | TEMPORARY ASSISTANCE FOR NEEDY FAMILIES | $3,245,115 | No |
What findings did the auditor report?
The reference and the requirement letter are the ones the auditor used. The finding text itself is not reproduced here; the FAC report linked above carries it in full.
The most recent report lists no finding.
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How we computed this
Every row comes from the Federal Audit Clearinghouse record named beside it, one report per audit year, with a resubmission superseding the filing it replaces. The auditor is the one named on that filing — it is not a statement about who audits County of Contra Costa now. Form 990 figures come from the IRS e-filed return named by its object id. This page exists because the organization filed at least two single audits, or one with a finding.
Cite this page
AuditRadar. “County of Contra Costa Single Audits and Findings (CA).” https://getauditradar.com/single-audits/ca/county-of-contra-costa-946000509/. Data as of 2026-09-18.