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Your guide to navigating the U.S. zoning system

Understanding American Zoning System

States Completed 1/50
States Completed 2%
Counties Completed 3/3,143
Counties Completed 0.1%

What is Zoning Decoded?

1. Clear, Practical Information

  • Understand zoning codes, land-use rules, and development constraints without digging through fragmented local resources.

2. County-by-County Breakdown

  • Every jurisdiction is organised into its own page, giving you direct access to zoning maps, codes, and planning information.

3. Built for Scale

  • Covering over 30,000 zoning jurisdictions across the United States, with continuous expansion as more data is added.

4. Always Expanding

  • New counties, municipalities, and resources are added over time, building a more complete and reliable zoning directory.

How it Works

New counties, municipalities, and resources are added over time, building a more complete and reliable zoning directory.

1. Select a State

Navigate zoning data in three simple steps.

2. Browse Counties

View counties within the state and see available zoning coverage.

Open local pages to find zoning codes, maps, and planning resources.

3. Access Zoning Data

Browse by State

Open local pages to find zoning codes, maps, and planning resources.

Delaware

Counties Completed 3/3 100%

Massachusetts

Counties Completed 3/14 20%

U.S Zoning Coverage

Building a structured, nationwide database of zoning information — updated as new jurisdictions are added.

- 50 States

Building a structured, nationwide database of zoning information — updated as new jurisdictions are added.

- 3,000 Counties

Mapped and organised by jurisdiction

- 30,000+ Jurisdictions

Cities, towns, and local zoning authorities

- Continuously Expanding

New data and resources added over time

Learn about Zoning

Understand how zoning works, how to read zoning maps, and how local regulations affect land use and development.

Why Zoning Decoded Exists?

Zoning information across the United States is highly fragmented. Each county, city, and municipality maintains its own zoning codes, maps, and planning documents, often spread across different systems and formats.

Finding clear, consistent information can be difficult — whether you’re researching a property, planning a project, or trying to understand local regulations.

Zoning Decoded brings this information into a single, structured platform. By organising zoning data by state, county, and jurisdiction, it becomes easier to navigate, compare, and access the resources that matter.

This is an ongoing effort to build a complete, accessible view of zoning across the United States.

Help with Zoning Decoded

Have a missing jurisdiction, broken link, or useful zoning resource to share? Get in touch and help improve the directory.

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