# Planned developments in Marion County, MO

Boardwalk found 41 planned projects in Marion County, MO in public filings from the last 12 months, mostly infrastructure. The latest is on the Palmyra Planning & Zoning Board agenda for Sep 28, 2026.

Data as of Oct 19, 2026. Updated monthly. Page: https://boardwalkai.com/development/missouri/marion/

## Marion County at a glance

| Measure | Value |
|---|---|
| Projects, last 12 months | 41 |
| New in the last 30 days | 1 |
| Most common type | Infrastructure |
| Latest filing | Sep 28, 2026, Palmyra Planning & Zoning Board |
| Sources we check | 1 |

Last 12 months, duplicates merged. Includes private, public, and small jobs. How we count: https://boardwalkai.com/coverage/#how-we-count

## What's planned in Marion County

By type, last 12 months.

| Type | Projects | Share |
|---|---|---|
| Infrastructure | 23 | 56% |
| Development decisions | 8 | 20% |
| Residential | 8 | 20% |
| Public and institutional | 1 | 2% |
| Commercial | 1 | 2% |

## Recent projects in Marion County

| Project | Location | Developer | Type | Size | Stage | Latest meeting |
|---|---|---|---|---|---|---|
| Middle School Detention Basin Engineering Contract Amendment | Palmyra, MO | Not stated | Stormwater and drainage | Not stated in filing | In design | Sep 17, 2026 |
| MoDOT TAP Grant West Side Trail Infrastructure | Palmyra, MO | Not stated | Transportation | Not stated in filing | Approved | Sep 3, 2026 |
| Hutcherson Trail Engineering Agreement with Klingner & Associates | Palmyra, MO | Not stated | Trails and greenways | Not stated in filing | In design | Sep 3, 2026 |
| Water Plant Infrastructure Upgrades | Palmyra, MO | Not stated | Utilities | Not stated in filing | In design | Aug 6, 2026 |
| $1.5M Warren Head Business Park Infrastructure Extension | Palmyra, MO | Not stated | Pipelines | Not stated in filing | Early planning | Aug 6, 2026 |
| UV System Building Construction Bids | Palmyra, MO | Not stated | Utilities | Not stated in filing | Out to bid | May 7, 2026 |
| South Main Sidewalk Replacement Project | Palmyra, MO | Not stated | Sidewalks | Not stated in filing | Approved | Mar 19, 2026 |
| Water Treatment Facility Upgrade and Water Transmission Main Project | Palmyra, MO | Not stated | Water treatment plants | Not stated in filing | Early planning | Dec 4, 2025 |

Showing 8 of 41 projects. A free trial opens the full records and documents.

Samples show projects filed by companies or public bodies.

## Cities in Marion County

- [Palmyra, MO](https://boardwalkai.com/development/missouri/palmyra/) · 41 projects

## Nearby places

- [Lewis County, MO](https://boardwalkai.com/development/missouri/lewis/) · 20 projects
- [Ralls County, MO](https://boardwalkai.com/development/missouri/ralls/) · 53 projects
- Shelby County, MO · 15 projects
- Monroe County, MO · Checked, no projects in 12 months
- [Pike County, MO](https://boardwalkai.com/development/missouri/pike/) · 48 projects
- Clark County, MO · 2 projects

All places in Missouri: [Missouri](https://boardwalkai.com/development/missouri/)

## Questions about Marion County

### What's planned in Marion County, MO?

Boardwalk found 41 planned projects in Marion County, MO in the last 12 months, mostly infrastructure. The latest is on the Palmyra Planning & Zoning Board agenda for Sep 28, 2026.

### Where does this data come from?

Boardwalk's Marion County projects come from public meeting records, such as Palmyra Planning & Zoning Board agendas and minutes. Each one links to the original filing.

### How current is it?

Boardwalk checks Marion County's public records at least once a week; the last check was Oct 17, 2026. These counts are as of Oct 19, 2026 and refresh monthly.

### Can I get an Alert for new Marion County projects?

Yes, a Boardwalk Alert emails you new Marion County projects daily, weekly, or monthly. Start with a 7-day free trial, no credit card needed.

## Get the full data

- **Count for free.** Connect Boardwalk to Claude or ChatGPT and ask how many projects match. Counting is free during your trial and on every plan. [Use it in Claude or ChatGPT](https://boardwalkai.com/mcp/)
- **Open the records.** Start a 7-day free trial, no credit card. It includes 50 project records. [Start free trial](https://boardwalkai.com/auth/signup/)
- **Use it in your tools.** CSV export, the API, and the MCP server come with every plan. [API docs](https://boardwalkai.com/docs/api/)
- **Download these numbers.** [marion.json](https://boardwalkai.com/data/places/missouri/marion.json) · [marion.md](https://boardwalkai.com/development/missouri/marion/index.md)

## How to cite

Source: Boardwalk, "Planned developments in Marion County, MO", boardwalkai.com/development/missouri/marion/, data as of Oct 19, 2026.

How we count: https://boardwalkai.com/coverage/#how-we-count