Carrollton Municipal Open Data: Datasets & API Access
Carrollton, Texas publishes municipal datasets and developer APIs to support transparency, planning, and civic tech. This guide explains where to find Carrollton datasets, how to access APIs, what offices govern public records and data requests, and practical steps for developers, researchers, and residents to use the data responsibly. It references the city portal, public information request procedures, and the municipal code for governance and compliance. Current as of February 2026.
What the Open Data Portal Provides
The City of Carrollton’s open data portal lists GIS layers, asset inventories, permit datasets, and performance metrics. Many datasets are exposed through REST endpoints and exportable CSV or GeoJSON formats via the portal interface. For developer access and API endpoints consult the official portal and dataset pages Carrollton Open Data portal[1].
- Common dataset types: GIS parcels, zoning, building permits, code enforcement records.
- Download formats: CSV, GeoJSON, Shapefile (when provided), and direct REST queries.
- API access: REST/FeatureService endpoints and standard query parameters for filtering and pagination.
Access and Technical Requirements
Public datasets are generally accessible without an account for read-only queries. Some services may require API keys or rate limits managed by the portal hosting platform; check dataset metadata and the portal’s developer documentation for limits and access methods. When data is not published online, use the City Secretary public information request process to obtain official records City of Carrollton Public Information Requests[2].
Penalties & Enforcement
The city’s published portal and related pages describe permitted use and disclaimers but do not generally list criminal or civil fines specific to API access misuse on the portal pages cited; enforcement of misuse or unauthorized access would follow applicable municipal code and state law. Specific fine amounts and penalty schedules for data misuse are not specified on the cited pages, and may be governed by other ordinances or state statutes. For official code language refer to the Carrollton Code of Ordinances and relevant sections on computer crimes, unauthorized access, or records tampering Carrollton Code of Ordinances[3]. Current enforcement practices and penalty amounts are not specified on the cited pages; see the code and the City Attorney for formal interpretation.
- Fine amounts: not specified on the cited page.
- Escalation (first/repeat/continuing offences): not specified on the cited page.
- Non-monetary sanctions: orders to cease, injunctive relief, or court actions may apply per municipal code.
- Enforcer: City Attorney, Police Department, or designated department staff depending on the violation; complaints start via department contacts or the City Secretary for records issues.
- Appeals/review: not specified on the cited portal pages; municipal code and chapter procedures control appeal timelines and must be consulted.
Applications & Forms
To request unpublished records or official certified copies, use the public information request channels managed by the City Secretary. The portal itself may provide dataset export tools but not certified records. Specific form names, form numbers, fees, and submission deadlines for public records requests are outlined on the City Secretary pages; if a named city form is required it will be posted on that page. If the portal offers an API key registration form, it will be visible on the developer section of the portal or dataset page.
- Public information request form: check the City Secretary online page for the official form and submission method.
- Fees and payment: specific fees for copying or certification are not specified on the portal pages; see City Secretary fee schedule.
- Deadlines: statutory response times for public information requests are governed by the Texas Public Information Act; see the City Secretary page for city procedures.
How to Use the API Safely
- Identify the dataset on the city portal and read its metadata to learn allowed formats and contact points.
- Test queries on the dataset’s REST/FeatureService endpoint using limit and where parameters to avoid heavy queries.
- If data needed is not available or requires certification, file a public information request with the City Secretary.
FAQ
- How do I find Carrollton datasets and APIs?
- Search the city’s open data portal and the published dataset pages; developer endpoints are exposed per dataset on the portal.
- Is there an API key or rate limit?
- Rate limits or API key requirements vary by dataset and are described on the portal or dataset metadata; contact the portal administrator for specifics.
- How do I request data not published online?
- Submit a public information request to the City Secretary using the official request procedure on the city website.
How-To
- Locate the dataset on the Carrollton open data portal and open its details page.
- Use the dataset’s REST/FeatureService endpoint to run filtered queries and export CSV or GeoJSON as needed.
- If the dataset is not published or you need certified records, file a public information request via the City Secretary page.
- For legal questions about reuse, licensing, or potential penalties, contact the City Attorney or the department listed on the dataset metadata.
Key Takeaways
- Start at the Carrollton open data portal to locate datasets and API endpoints.
- Use the City Secretary for formal public information requests and certified records.
- When in doubt about reuse or legal risk, consult the City Attorney or department contact listed on the dataset.
Help and Support / Resources
- Carrollton Open Data Portal
- City of Carrollton - City Secretary: Public Information Requests
- City of Carrollton - GIS / Information Technology
- Carrollton Code of Ordinances (Municode)