Community information
Find official local
information.
Explore a place you know, find official local resources where we have researched them, and understand what participation means.
The research inventory
Place information, with its source in view.
This chart shows the eight states with the most included place records. These are Census places, not Lucas users, customers or participating agencies.
The inventory includes 1,623 places. The population filter, source vintage and geographic limitations are explained below.
Read the chart values
| State | Places |
|---|---|
| California | 276 |
| Texas | 134 |
| Florida | 104 |
| Illinois | 90 |
| Ohio | 65 |
| Georgia | 49 |
| Massachusetts | 49 |
| Michigan | 46 |
A place to start,
with a clear scope.
This directory helps you identify a place and find official information where researched. It is separate from the agencies and services it links to.
For information about a place
Browse a state or search the place inventory. The state pages link to official public-information sources and distinguish their role from Lucas availability. Researched city pages explain local differences between alert registration, police reporting and ordinary contact.
A name can represent an incorporated place without identifying every agency serving an address. Smaller towns, neighborhoods and unincorporated communities can fall outside this inventory and still have official services. Continue through the relevant city or county source when a name is absent.
For the appropriate service
Use the issuing authority’s current instructions for an alert, the responsible agency’s process for a report, and Detailr’s contact for a product inquiry. Those tasks should not be treated as interchangeable because they all have a link or form.
Before relying on a Lucas feature, confirm participation and current availability. This directory does not accept tips, enroll you in an official warning service or create a police report. For an emergency, call 911.
The national inventory uses Census Vintage 2025 place estimates with a threshold of 25,000 residents. That threshold keeps a research list manageable; it is not an eligibility rule for a police service or a measure of where the app operates.
State-specific source notes add useful starting points, with links to the original authority. Read those pages for current enrollment rules, contact information and local boundaries. A national directory cannot substitute for the instructions of the service you intend to use.
How to use the search.
Type at least two characters from a place or state name. If there are many matches, add more of the name to narrow the list. The search shows up to 20 results at a time. Check the state as well as the place name, especially when a name appears in several parts of the country.
A result can open a researched local page or take you to the place’s row in its state directory. Those destinations offer different levels of detail. A population-only row does not supply local reporting instructions; use the official sources linked on the state page to continue that search.
Find a city or state.
50 states and the District of Columbia
Search a city or state. Participation must be confirmed with the agency.
Search covers 1,623 places in the current Census-based inventory. This is a directory of places, not a count of users, agencies, or operating communities.
Browse by state
Directory scope: Census Vintage 2025 records for incorporated places with at least 25,000 residents, including the source’s special Urban Honolulu record. Additional census-designated places and unincorporated communities are not comprehensively covered. Population source and methodology.
For departments
Discuss your department’s workflow.
Review the current product, operating responsibilities and the questions a focused evaluation should answer.