Microproduct Data GuideIntermediate

FBI CDE Agency Crime Summaries

FBI Crime Data Explorer agency-level offense and reporting-population responses for cautious local safety comparisons.

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At a Glance

Difficulty
Intermediate — some data preparation helps
Size
Tiny · ≤0.003 GB
Formats
JSON
Access
API
API Key
Not Required
Provider
Federal Bureau of Investigation
Updates
Annual
Last Verified
Sep 28, 2026
Source Type
Government Source
Data Terms
Publicly released FBI UCR data are public domain; cite the FBI and preserve agency reporting coverage.
  • Python Syntax Checked

From Source to Product Signal

Test a Product Idea in Four Steps

The CDE's agency catalog and summarized agency/offense endpoint are distinct from the key-gated FBI state-estimates API. Start with one Rhode Island ORI and one offense family. Participation and suppression can make agency or county comparisons incomplete; a missing value is not zero crime.

1

Check the Setup

  • Python 3.10 or newer
  • An internet connection
  • The requests Python package
2

Access the Data

  1. 1.Read the FBI CDE methodology and public-domain guidance.
  2. 2.Fetch a small state agency catalog and choose one ORI.
  3. 3.Inspect a dated offense summary and its reporting-population fields.
Open Official Source
3

Run the Python Example

Install the packages, then run the notebook cell.

python -m pip install requests

import requests

base = "https://cde.ucr.cjis.gov/LATEST"
catalog = requests.get(f"{base}/agency/byStateAbbr/RI", timeout=20)
catalog.raise_for_status()
agency = catalog.json()["KENT"][0]
summary = requests.get(
    f"{base}/summarized/agency/{agency['ori']}/violent-crime",
    params={"from": "01-2023", "to": "12-2025", "type": "totals"}, timeout=20,
)
summary.raise_for_status()
series = next(iter(summary.json()["offenses"]["actuals"].values()))
print(agency["ori"], agency["agency_name"], series.get("01-2025"))
4

Test a Useful Signal

Inspect Agency Crime Coverage

Compare agency offense counts while retaining reporting coverage.

  1. 01Fetch one ORI and its dated violent-crime summary.
  2. 02Inspect the corresponding population and submission fields.
  3. 03Explain why voluntary reporting prevents treating null or suppressed counts as zero.

Related Datasets

Dataset Details

Federal Bureau of Investigation is a government source. Last verified 2026-09-28. Temporal coverage: agency summaries for 2023-2025 in HouseHunter's pinned manifest.

Data Types

Time Series

Geography

United States

Formats

JSON

Provider

Federal Bureau of Investigation

Data Terms

Publicly released FBI UCR data are public domain; cite the FBI and preserve agency reporting coverage.

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