How to Use Crime Data By ZipCode API

You need to show crime grades and category breakdowns for a given U.S. ZIP code in your app this week. By the end of this guide, you’ll be able to request crime grades and rates for a ZIP, parse the response, and ship it with a small, production-ready integration.

What this API gives you

The Crime Data By ZipCode API returns an overall crime grade for a ZIP code and a breakdown of violent, property, and other crime categories, plus nearby ZIP comparisons and similar-population ZIPs. It’s designed for apps like real estate search, logistics planning, insurance risk screening, and local dashboards where a quick crime profile by ZIP is required.

This API is available on Zyla API Hub, a marketplace with more than 10,000 public APIs under one account, one API key, and one subscription model.

Getting started on Zyla API Hub

To use this API:

Open the API page on Zyla API Hub and subscribe.
Copy your API key from the dashboard.
Call the endpoint with Authorization: Bearer YOUR_API_KEY.

You can start with a 7-day trial on the item page. Check the API page for current access options and pricing. Billing is subscription + quota, not pay-per-call.

Start 7-day trial on Crime Data By ZipCode API

Endpoint and request

The Crime Data By ZipCode API exposes one key endpoint for fetching crime data for a ZIP:

Get Crime Rates by ZIP
- Method: GET
- URL: https://zylalabs.com/api/824/crime-data-by-zipcode-api/583/get-crime-rates-by-zip
- Required query param:
  - zip (number): ZIP code to analyze (example: 01370)

Official cURL example

curl -s -X GET "https://zylalabs.com/api/824/crime-data-by-zipcode-api/583/get-crime-rates-by-zip?zip=01370" \
  -H "Authorization: Bearer YOUR_API_KEY"

Official sample response

{"Overall":{"Zipcode":"01370","Overall Crime Grade":"B","Violent Crime Grade":"C-","Property Crime Grade":"B","Other Crime Grade":"B"},"Crime BreakDown":[{"Violent Crime Rates":{"Assault":"2.759","Robbery":"0.4627","Rape":"0.5506","Murder":"0.0218"},"0":{"Total Violent Crime":"3.795","Total Violent Crime Score":"(C-)"}},{"Property Crime Rates":{"Theft":"8.498","Vehicle Theft":"0.6988","Burglary":"1.563","Arson":"0.0619"},"0":{"Total Property Crime":"10.82","Total Property Crime Score":"(B)"}},{"Other Crime Rates":{"Kidnapping":"0.1303","Drug Crimes":"1.553","Vandalism":"3.749","Identity Theft":"0.4203","Animal Cruelty":"0.0490"},"0":{"Total \"Other\" Rate":"5.902","Total \"Other\" Score":"(B)"}}],"Crime Rates Nearby":[{"Nearby Zip":"01338, MA","Overall Crime Grade":"B-","Violent Crime Grade":"D","Property Crime Grade":"B-"},{"Nearby Zip":"01340, MA","Overall Crime Grade":"A-","Violent Crime Grade":"A-","Property Crime Grade":"B"},{"Nearby Zip":"01341, MA","Overall Crime Grade":"A","Violent Crime Grade":"C-","Property Crime Grade":"A"},{"Nearby Zip":"01301, MA","Overall Crime Grade":"C+","Violent Crime Grade":"C-","Property Crime Grade":"C"},{"Nearby Zip":"01330, MA","Overall Crime…

Key fields you’ll typically surface:

Overall.Zipcode: ZIP code of the query.
Overall.Overall Crime Grade: single-letter grade (e.g., B).
Overall.Violent Crime Grade, Property Crime Grade, Other Crime Grade: category grades.
Crime BreakDown: category-specific rates and totals (e.g., Assault, Theft, Vandalism) and aggregate scores.
Crime Rates Nearby: nearby ZIPs with their grades to compare context.
Similar Population Crime Rates: ZIPs with similar population and their grades.

Notes:

Field names include spaces (e.g., “Overall Crime Grade”). When parsing JSON, access them as-is.
Units for the numeric rates are per-population metrics as provided by the service. Display them as returned unless you transform consistently across your UI.
If your workload queries the same ZIPs repeatedly, add client-side caching to cut duplicate calls and latency.

Python example: fetch a ZIP and extract grades

This sample calls the endpoint, reads the overall and category grades, and summarizes nearby ZIPs. Replace YOUR_API_KEY with your real key.

import os
import requests

API_KEY = os.getenv("Zyla_API_Key", "YOUR_API_KEY")
ZIP = "01370"

url = "https://zylalabs.com/api/824/crime-data-by-zipcode-api/583/get-crime-rates-by-zip"
params = {"zip": ZIP}
headers = {"Authorization": f"Bearer {API_KEY}"}

resp = requests.get(url, params=params, headers=headers, timeout=15)
resp.raise_for_status()
data = resp.json()

overall = data.get("Overall", {})
overall_grade = overall.get("Overall Crime Grade")
violent_grade = overall.get("Violent Crime Grade")
property_grade = overall.get("Property Crime Grade")
other_grade = overall.get("Other Crime Grade")

print(f"ZIP {overall.get('Zipcode')}: overall {overall_grade}, "
f"violent {violent_grade}, property {property_grade}, other {other_grade}")

# Example: extract Assault rate and Total Property Crime if present
breakdown = data.get("Crime BreakDown", [])
for section in breakdown:
if "Violent Crime Rates" in section:
assault = section["Violent Crime Rates"].get("Assault")
print(f"Assault rate: {assault}")
if "Property Crime Rates" in section:
total_prop = section.get("0", {}).get("Total Property Crime")
print(f"Total Property Crime: {total_prop}")

# Nearby ZIP grades preview
nearby = data.get("Crime Rates Nearby", [])
for n in nearby[:3]:
print(f"Nearby {n.get('Nearby Zip')}: overall {n.get('Overall Crime Grade')}")

Implementation details that save time

Authentication: use Authorization: Bearer YOUR_API_KEY in every request.
Error handling: treat non-2xx responses as transient or invalid input (e.g., malformed or unsupported ZIP). Log the status code and response body for troubleshooting.
Timeouts: set a client timeout (10–15 seconds is a practical default) and retry idempotent GETs on network failures.
Caching: cache by ZIP for your use case window (e.g., hours to days). Add stale-while-revalidate behavior in background jobs.
UI tips:
- Grades are letter-based; provide a legend to avoid ambiguity (e.g., A best to F worst).
- When showing category totals (e.g., “Total Property Crime”), include the category score if present (e.g., “(B)”).
- For context, add a “nearby ZIPs” comparison view using Crime Rates Nearby.

Practical use cases you can ship now

Property search: show an overall grade pill per listing card using the property’s ZIP; expand to category breakdown in detail view.
Relocation tools: for a chosen ZIP, fetch the grade and nearby ZIPs to recommend safer or comparable neighborhoods.
Last-mile operations: compute a risk score by ZIP for route planning and delivery time windows.
Tenant screening portals: add a contextual ZIP risk panel to rental applications.
Insurance pre-quote: surface location risk hints before collecting PII-heavy forms.

Call the API from AI agents with MCP

You can invoke this same endpoint from compatible AI agents and IDEs through Zyla’s Model Context Protocol (MCP) gateway. MCP standardizes API access for tools like Claude Code, Cursor, and Windsurf. Point your client at the MCP endpoint, authorize with your Zyla API key, and call the tool that issues a GET to the Crime Data By ZipCode API URL with the zip parameter.

Docs and connection details: MCP. Use the same Authorization: Bearer YOUR_API_KEY and preserve the exact request URL and params described above.

Operational checklist

Inputs: validate ZIP as a 5-digit numeric string; reject or sanitize non-numeric characters before calling.
Observability: log request ID, ZIP, status code, and minimal response metadata (e.g., Overall grade) for support dashboards.
Backoff: on transient errors or rate responses, apply exponential backoff and jitter; surface a fallback message in the UI.
Security: keep the API key in server-side secrets; never expose it in client-side code.
Data refresh: if you periodically sync popular ZIPs, run a scheduled job that warms your cache to reduce perceived latency.

End-to-end flow summary

User selects a ZIP or you infer it from an address geocoder.
Your backend calls GET https://zylalabs.com/api/824/crime-data-by-zipcode-api/583/get-crime-rates-by-zip with zip=XXXXX and Authorization: Bearer YOUR_API_KEY.
Parse the JSON fields you need:
- Overall grades for top-level UI.
- Crime BreakDown for tooltips and detail panels.
- Nearby ZIPs for recommendations.
Cache the response keyed by ZIP; expire on your schedule.
Render grades and rates in your UI; optionally add links to compare nearby ZIPs.

FAQ

What parameter is required?
Pass zip as a number in the query string (example: zip=01370).

How do I authenticate?
Send Authorization: Bearer YOUR_API_KEY in the request header.

Can I get nearby ZIP comparisons?
Yes. The response includes Crime Rates Nearby with nearby ZIPs and their grades.

What’s the pricing model?
Zyla APIs use subscription + quota. Check the API page for current access options; a 7-day trial starts on the item page.

Can I call this from an AI agent?
Yes, via Zyla’s MCP gateway in compatible tools. Use the same Authorization header and the documented URL and zip param.

Ready to integrate? Create your account on Zyla API Hub, get your API key, and start your trial here: Crime Data By ZipCode API. One account, one key, thousands of APIs you can ship with this week.

Official API response

{"Overall":{"Zipcode":"01370","Overall Crime Grade":"B","Violent Crime Grade":"C-","Property Crime Grade":"B","Other Crime Grade":"B"},"Crime BreakDown":[{"Violent Crime Rates":{"Assault":"2.759","Robbery":"0.4627","Rape":"0.5506","Murder":"0.0218"},"0":{"Total Violent Crime":"3.795","Total Violent Crime Score":"(C-)"}},{"Property Crime Rates":{"Theft":"8.498","Vehicle Theft":"0.6988","Burglary":"1.563","Arson":"0.0619"},"0":{"Total Property Crime":"10.82","Total Property Crime Score":"(B)"}},{"Other Crime Rates":{"Kidnapping":"0.1303","Drug Crimes":"1.553","Vandalism":"3.749","Identity Theft":"0.4203","Animal Cruelty":"0.0490"},"0":{"Total \"Other\" Rate":"5.902","Total \"Other\" Score":"(B)"}}],"Crime Rates Nearby":[{"Nearby Zip":"01338, MA","Overall Crime Grade":"B-","Violent Crime Grade":"D","Property Crime Grade":"B-"},{"Nearby Zip":"01340, MA","Overall Crime Grade":"A-","Violent Crime Grade":"A-","Property Crime Grade":"B"},{"Nearby Zip":"01341, MA","Overall Crime Grade":"A","Violent Crime Grade":"C-","Property Crime Grade":"A"},{"Nearby Zip":"01301, MA","Overall Crime Grade":"C+","Violent Crime Grade":"C-","Property Crime Grade":"C"},{"Nearby Zip":"01330, MA","Overall Crime Grade":"A","Violent Crime Grade":"A-","Property Crime Grade":"A"},{"Nearby Zip":"01346, MA","Overall Crime Grade":"A","Violent Crime Grade":"C","Property Crime Grade":"A"},{"Nearby Zip":"01339, MA","Overall Crime Grade":"A-","Violent Crime Grade":"C","Property Crime Grade":"A"},{"Nearby Zip":"01342, MA","Overall Crime Grade":"A","Violent Crime Grade":"B+","Property Crime Grade":"A+"},{"Nearby Zip":"01376, MA","Overall Crime Grade":"B-","Violent Crime Grade":"C+","Property Crime Grade":"B-"},{"Nearby Zip":"01337, MA","Overall Crime Grade":"A","Violent Crime Grade":"B-","Property Crime Grade":"A"}],"Similar Population Crime Rates":[{"Similar Zip":"34217, FL","Overall Crime Grade":"A-","Violent Crime Grade":"C+","Property Crime Grade":"C+"},{"Similar Zip":"72046, AR","Overall Crime Grade":"F","Violent Crime Grade":"D-","Property Crime Grade":"D-"},{"Similar Zip":"52778, IA","Overall Crime Grade":"B","Violent Crime Grade":"A-","Property Crime Grade":"A-"},{"Similar Zip":"54126, WI","Overall Crime Grade":"A","Violent Crime Grade":"A+","Property Crime Grade":"A+"},{"Similar Zip":"02715, MA","Overall Crime Grade":"A+","Violent Crime Grade":"A-","Property Crime Grade":"A-"},{"Similar Zip":"67025, KS","Overall Crime Grade":"B-","Violent Crime Grade":"B+","Property Crime Grade":"B+"},{"Sim…

Official API response

{"Overall":{"Zipcode":"01370","Overall Crime Grade":"B","Violent Crime Grade":"C-","Property Crime Grade":"B","Other Crime Grade":"B"},"Crime BreakDown":[{"Violent Crime Rates":{"Assault":"2.759","Robbery":"0.4627","Rape":"0.5506","Murder":"0.0218"},"0":{"Total Violent Crime":"3.795","Total Violent Crime Score":"(C-)"}},{"Property Crime Rates":{"Theft":"8.498","Vehicle Theft":"0.6988","Burglary":"1.563","Arson":"0.0619"},"0":{"Total Property Crime":"10.82","Total Property Crime Score":"(B)"}},{"Other Crime Rates":{"Kidnapping":"0.1303","Drug Crimes":"1.553","Vandalism":"3.749","Identity Theft":"0.4203","Animal Cruelty":"0.0490"},"0":{"Total \"Other\" Rate":"5.902","Total \"Other\" Score":"(B)"}}],"Crime Rates Nearby":[{"Nearby Zip":"01338, MA","Overall Crime Grade":"B-","Violent Crime Grade":"D","Property Crime Grade":"B-"},{"Nearby Zip":"01340, MA","Overall Crime Grade":"A-","Violent Crime Grade":"A-","Property Crime Grade":"B"},{"Nearby Zip":"01341, MA","Overall Crime Grade":"A","Violent Crime Grade":"C-","Property Crime Grade":"A"},{"Nearby Zip":"01301, MA","Overall Crime Grade":"C+","Violent Crime Grade":"C-","Property Crime Grade":"C"},{"Nearby Zip":"01330, MA","Overall Crime Grade":"A","Violent Crime Grade":"A-","Property Crime Grade":"A"},{"Nearby Zip":"01346, MA","Overall Crime Grade":"A","Violent Crime Grade":"C","Property Crime Grade":"A"},{"Nearby Zip":"01339, MA","Overall Crime Grade":"A-","Violent Crime Grade":"C","Property Crime Grade":"A"},{"Nearby Zip":"01342, MA","Overall Crime Grade":"A","Violent Crime Grade":"B+","Property Crime Grade":"A+"},{"Nearby Zip":"01376, MA","Overall Crime Grade":"B-","Violent Crime Grade":"C+","Property Crime Grade":"B-"},{"Nearby Zip":"01337, MA","Overall Crime Grade":"A","Violent Crime Grade":"B-","Property Crime Grade":"A"}],"Similar Population Crime Rates":[{"Similar Zip":"34217, FL","Overall Crime Grade":"A-","Violent Crime Grade":"C+","Property Crime Grade":"C+"},{"Similar Zip":"72046, AR","Overall Crime Grade":"F","Violent Crime Grade":"D-","Property Crime Grade":"D-"},{"Similar Zip":"52778, IA","Overall Crime Grade":"B","Violent Crime Grade":"A-","Property Crime Grade":"A-"},{"Similar Zip":"54126, WI","Overall Crime Grade":"A","Violent Crime Grade":"A+","Property Crime Grade":"A+"},{"Similar Zip":"02715, MA","Overall Crime Grade":"A+","Violent Crime Grade":"A-","Property Crime Grade":"A-"},{"Similar Zip":"67025, KS","Overall Crime Grade":"B-","Violent Crime Grade":"B+","Property Crime Grade":"B+"},{"Sim…