MERCER COUNTY: Single Audit Reports and Findings
MERCER COUNTY filed 5 single audits between 2019 and 2023; the most recently observed auditor is WIPFLI LLP (2023), and the 2023 report lists 2 findings. Data as of 2026-11-06.
Data as of Nov 6, 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; MERCER COUNTY is recorded in ALEDO, Illinois under EIN 366006630, and the Clearinghouse records it as a local government. Each report opens on the Clearinghouse itself; how to search the Federal Audit Clearinghouse explains the rest of the reporting package.
| Audit year | Fiscal year end | Federal expended | Threshold applied | Auditor observed | Findings | MW / SD | FAC report |
|---|---|---|---|---|---|---|---|
| 2023 | 2023-11-30 | $1,698,370 | $750,000 | WIPFLI LLP | 2 | SD | 2023-11-GSAFAC-0000051114 |
| 2022 | 2022-11-30 | $841,462 | $750,000 | WIPFLI LLP | 0 | SD | 2022-11-GSAFAC-0000003308 |
| 2021 | 2021-11-30 | $1,245,079 | $750,000 | EIDE BAILLY LLP | 0 | SD | 2021-11-CENSUS-0000138672 |
| 2020 | 2020-11-30 | $953,068 | $750,000 | EIDE BAILLY LLP | 0 | SD | 2020-11-CENSUS-0000138672 |
| 2019 | 2019-11-30 | $940,270 | $750,000 | EIDE BAILLY LLP | 0 | SD | 2019-11-CENSUS-0000138672 |
When is the next single audit due?
If MERCER COUNTY is again required to have a single audit for the fiscal year ending Nov 30, 2024, the reporting package is due to the Federal Audit Clearinghouse by Sep 1, 2025 at the latest.
No filing for that fiscal year appears in the Clearinghouse data as of Nov 6, 2026. The data does not show why: an organization below the threshold is not required to file, and a filing can be accepted after the due date.
Whether an audit is required depends on federal awards expended in that year (the single audit threshold). The rule, 2 CFR 200.512(a): the reporting package is due within 30 calendar days after the auditee receives the auditor's report or nine months after the end of the audit period, whichever is earlier; the date above is the nine-month date, moved to Monday when it falls on a weekend. Last verified: 2026-11-15.
Illinois also publishes audit reports of local governments: Illinois Office of Comptroller. Last verified: 2026-11-15.
Which federal programs did this organization report?
From the most recent accepted report, as listed on its schedule of expenditures of federal awards (SEFA). "Major" is the designation the auditor made under 2 CFR 200.518, not ours.
| ALN | Program | Expended | Major |
|---|---|---|---|
| 21.027 | CORONAVIRUS STATE AND LOCAL FISCAL RECOVERY FUNDS | $890,696 | Yes |
| 20.205 | HIGHWAY PLANNING AND CONSTRUCTION | $270,143 | No |
| 93.994 | MATERNAL AND CHILD HEALTH SERVICES BLOCK GRANT TO THE STATES | $174,825 | No |
| 93.268 | IMMUNIZATION COOPERATIVE AGREEMENTS | $150,531 | No |
| 10.557 | SPECIAL SUPPLEMENTAL NUTRITION PROGRAM FOR WOMEN, INFANTS, AND CHILDREN | $70,289 | No |
| 97.039 | HAZARD MITIGATION GRANT | $36,870 | No |
| 93.074 | HOSPITAL PREPAREDNESS PROGRAM (HPP) AND PUBLIC HEALTH EMERGENCY PREPAREDNESS (PHEP) ALIGNED COOPERATIVE AGREEMENTS | $35,566 | No |
| 93.323 | EPIDEMIOLOGY AND LABORATORY CAPACITY FOR INFECTIOUS DISEASES (ELC) | $25,724 | No |
| 15.226 | PAYMENTS IN LIEU OF TAXES | $14,017 | No |
| 97.042 | EMERGENCY MANAGEMENT PERFORMANCE GRANTS | $13,641 | No |
| 93.967 | CDC'S COLLABORATION WITH ACADEMIA TO STRENGTHEN PUBLIC HEALTH | $12,008 | No |
| 15.659 | NATIONAL WILDLIFE REFUGE FUND | $1,118 | No |
| 10.572 | WIC FARMERS' MARKET NUTRITION PROGRAM (FMNP) | $1,000 | No |
| 93.354 | PUBLIC HEALTH EMERGENCY RESPONSE: COOPERATIVE AGREEMENT FOR EMERGENCY RESPONSE: PUBLIC HEALTH CRISIS RESPONSE | $976 | No |
| 66.605 | PERFORMANCE PARTNERSHIP GRANTS | $538 | No |
| 20.703 | INTERAGENCY HAZARDOUS MATERIALS PUBLIC SECTOR TRAINING AND PLANNING GRANTS | $428 | No |
What findings did the auditor report?
The reference is the auditor’s; the requirement is the Compliance Supplement category the auditor selected. The finding text itself is not reproduced here; the FAC report linked above carries it in full. What the two severity levels mean: material weakness vs significant deficiency.
| Reference | Requirement | Severity | Repeat |
|---|---|---|---|
| 2023-001 | Allowable costs / cost principles (B) | Significant deficiency | No |
| 2023-002 | Reporting (L) | Significant deficiency | No |
Read next
- CPA firms that audit Illinois nonprofits
- Illinois single audit statistics
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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 MERCER COUNTY 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. “Mercer County, Illinois Single Audits 2019–2023.” https://getauditradar.com/single-audits/il/mercer-county-366006630/. Data as of 2026-11-06.