# Pioneer Municipal High Income Fund, Inc.

Pioneer Municipal High Income Fund, Inc. (CIK 1223026) is an SEC-registered fund company and $4.2M in net assets as of 2026-04-30.

## Registrant

- CIK: 1223026
- File number: 811-21321
- LEI: 5493009JYKCUKTUKGP36
- Address: 60 State Street, Boston, US-MA, 02109
- Phone: 617-422-4947
- Net assets: $4.2M
- Total assets: $4.3M
- Latest report: 2026-04-30

## Fund series (1)

| Series | Net assets |
| --- | --- |
| Pioneer Municipal High Income Fund, Inc. | $4.2M |

## Largest reported holdings (across all series)

| Holding | Value |
| --- | --- |
| [CENTRAL FALLS DETENTION FACILITY CORP (RI)](https://search.stillhousedata.com/security/153457AX4) | $2.1M |
| [ARLINGTON HIGHER EDUCATION FINANCE CORP (TX)](https://search.stillhousedata.com/security/041806AM2) | $971K |
| [PHILADELPHIA PA AUTH](https://search.stillhousedata.com/security/71780CAM2) | $661K |
| [ARLINGTON HIGHER EDUCATION FINANCE CORP (TX)](https://search.stillhousedata.com/security/041806XD7) | $407K |

## More

- [CIK 1223026 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1223026&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/1223026.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.