# Planned developments in Plymouth County, IA

Boardwalk found 390+ planned projects in Plymouth County, IA in public filings from the last 12 months. The latest is on the Sioux City City Council agenda for Oct 5, 2026.

Data as of Oct 11, 2026. Updated monthly. Page: https://boardwalkai.com/development/iowa/plymouth/

## Plymouth County at a glance

| Measure | Value |
|---|---|
| Projects, last 12 months | 390+ |
| New in the last 30 days | 47 |
| Most common type | Infrastructure |
| Latest filing | Oct 5, 2026, Sioux City City Council |
| Sources we check | 6 |

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 Plymouth County

By type, last 12 months.

| Type | Projects | Share |
|---|---|---|
| Infrastructure | 150+ | 40% |
| Residential | 73 | 19% |
| Development decisions | 70 | 18% |
| Commercial | 44 | 11% |
| Public and institutional | 26 | 7% |
| Industrial | 22 | 6% |

## Recent projects in Plymouth County

| Project | Location | Developer | Type | Size | Stage | Latest meeting |
|---|---|---|---|---|---|---|
| $140K 17th Street Emergency Water Main Improvements | Sioux City, IA | JEO Consulting Group | Pipelines | Not stated in filing | In design | Oct 5, 2026 |
| $361K Floyd and PlyWood Trail Connector Engineering Contract | Sioux City, IA | Not stated | Trails and greenways | Not stated in filing | In design | Oct 5, 2026 |
| Bruner Avenue Access Drive Project | Sioux City, IA | Not stated | Transportation | Not stated in filing | Out to bid | Sep 21, 2026 |
| $20K Terminal TRU Replacement Phase 3 Project | Sioux City, IA | Not stated | Utilities | Not stated in filing | In design | Sep 17, 2026 |
| Transit Maintenance Garage and Storage Facility Expansion | Sioux City, IA | Not stated | Transportation | Not stated in filing | Early planning | Sep 16, 2026 |
| 60-Unit Single-Family Subdivision on 15.5 Acres | Le Mars, IA | Not stated | Single-family | 60 homes · 15.5 acres | Denied | Sep 15, 2026 |
| Industrial Spec Building in Expedition Business Park | Sioux City, IA | DC Realty, LLC | Industrial | Not stated in filing | Seeking approval | Sep 14, 2026 |
| 17.97-Acre Outer Banks Subdivision | Sioux City, IA | Aftershock Ventures, LLC | Schools | 18 acres | Continued | Sep 14, 2026 |
| 60-Acre Industrial Park Expansion | Le Mars, IA | Le Mars Business Improvement Corporation | Industrial | 60 acres | Seeking approval | Aug 18, 2026 |
| 24-Unit Permanent Supportive Housing Renovation | Sioux City, IA | Not stated | Affordable (LIHTC) housing | 24 units | Early planning | Aug 10, 2026 |
| 24-Unit Permanent Supportive Housing Rehabilitation | Sioux City, IA | Not stated | Residential | 24 units | Early planning | Jul 20, 2026 |
| 11-Unit Residential Development | Sioux City, IA | Isabella Square Developers LLC | Residential | 11 units | Seeking approval | Feb 23, 2026 |

Showing 12 of 390+ projects. A free trial opens the full records and documents.

Samples show projects filed by companies or public bodies.

## Cities in Plymouth County

- [Sioux City, IA](https://boardwalkai.com/development/iowa/sioux-city/) · 300+ projects
- [Le Mars, IA](https://boardwalkai.com/development/iowa/le-mars/) · 40 projects
- Merrill, IA · 29 projects
- [Hinton, IA](https://boardwalkai.com/development/iowa/hinton/) · 20 projects
- Kingsley, IA · Checked, no projects in 12 months

## Nearby places

- [Sioux County, IA](https://boardwalkai.com/development/iowa/sioux/) · 140+ projects
- [Cherokee County, IA](https://boardwalkai.com/development/iowa/cherokee/) · 23 projects
- [Woodbury County, IA](https://boardwalkai.com/development/iowa/woodbury/) · 190+ projects
- [O'Brien County, IA](https://boardwalkai.com/development/iowa/o-brien/) · 110+ projects
- [Lyon County, IA](https://boardwalkai.com/development/iowa/lyon/) · 82 projects
- [Ida County, IA](https://boardwalkai.com/development/iowa/ida/) · 74 projects

All places in Iowa: [Iowa](https://boardwalkai.com/development/iowa/)

## Questions about Plymouth County

### What's planned in Plymouth County, IA?

Boardwalk found 390+ planned projects in Plymouth County, IA in the last 12 months. The latest is on the Sioux City City Council agenda for Oct 5, 2026.

### Where does this data come from?

Boardwalk's Plymouth County projects come from public meeting records, such as Sioux City City Council agendas and minutes. Each one links to the original filing.

### How current is it?

Boardwalk checks Plymouth County's public records at least once a week; the last check was Oct 11, 2026. These counts are as of Oct 11, 2026 and refresh monthly.

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

Yes, a Boardwalk Alert emails you new Plymouth 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.** [plymouth.json](https://boardwalkai.com/data/places/iowa/plymouth.json) · [plymouth.md](https://boardwalkai.com/development/iowa/plymouth/index.md)

## How to cite

Source: Boardwalk, "Planned developments in Plymouth County, IA", boardwalkai.com/development/iowa/plymouth/, data as of Oct 11, 2026.

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