How to find a city's or county's official website and code of ordinances

Find the place, then read its links: Boundary Atlas has the official website for more than 15,000 US cities, towns and counties (from Wikidata and the federal .gov registry, each checked to load), and links to a search for the local code of ordinances, which most places publish through a code host such as Municode, American Legal or eCode360.

Who this is for

Residents, contractors and businesses checking local rules
Real estate and permitting
Agents that need a place's official source

Ask your agent

With Boundary Atlas added to Claude, ChatGPT, Cursor or Codex (free, no key; how):

Find the official websites for Chicago and Cook County, and where Chicago publishes its municipal code.

Step by step

Find the place. search_geographies(query="Chicago", level="place", region="IL").
Read its links. get_geography(id=...) includes links: the official website (source and last check).
Find the code. Cities and counties publish their code of ordinances through a code host; the city page links to a search for it. Always confirm against the official site.
By address. The lookup page shows the city and county websites for any address.

Live example

Government	Official website
Chicago, IL	https://chi.gov
Cook County, IL	https://www.cookcountyil.gov/
Houston, TX	https://www.houstontx.gov/
Harris County, TX	https://harriscountytx.gov

get_geography(id="us:place:1714000")   # links: official website

Things to know

Websites come from Wikidata and the .gov registry; a few may point to a tourism or chamber site rather than the government's own. Each was checked to load when added.
Code-of-ordinances links are searches: code hosts don't publish open lists, and their terms forbid copying.

Questions

Where can I read my city's ordinances?

Most cities publish their code of ordinances through a host such as Municode, American Legal or eCode360, linked from the city's website. Boundary Atlas links to both the official site and a search for the code.