There are 287 Guardian Interlock locations in the United States of America as of February 15, 2026. The state or territory with the most Guardian Interlock locations is California, with 53 sites, accounting for roughly 18.5% of the total.


Guardian Interlock operates 287 United States of America locations across 24 states. Largest clusters are in California, Colorado, and Maryland; the top 10 states contain 83.6% of sites. Coverage is thinner in Oregon, Tennessee, and Vermont.

Guardian Interlock operates 287 locations across the United States, with California leading at 53 sites (18.5% share). The top three states—California, Colorado, and Maryland—account for 42.2% of all locations, while the top ten states cover 83.6%. Colorado, Nebraska, and Idaho offer the best access with the lowest population per location, whereas Georgia, Tennessee, and Louisiana have the highest population per location, indicating more stretched coverage.
Locations concentrate around major metros such as LosAngeles, Adams, Orange, SanDiego, and SanBernardino. The top 10 cities account for 27.9% of U.S. sites.

Guardian Interlock operates 287 locations across the United States, with the top 10 cities accounting for 27.9% of all locations. Los Angeles, California, leads with 26 locations, followed by Adams, Colorado, with 9. California cities dominate the list, including Orange, San Diego, San Bernardino, and Riverside.
Street-level clusters show corridors where multiple Guardian Interlock locations sit within the same neighborhood indicating strong local presence and coherence. Guardian Interlock operates a total of 287 nationwide.

The complete dataset of Guardian Interlock locations across the United States of America is available for download, including coordinates, traffic patterns, and operational status.

Guardian Interlock has 287 locations across the United States of America. The key variables shows the most infleuntial aspects for Guardian Interlock locations nationwide. This provides a closer look of how Guardian Interlock is operating from different prespectives.

Guardian Interlock's presence spans several U.S. states with varying land areas. Texas is the largest state covered, measuring 695,668 km² with 21 locations, while Massachusetts is the smallest at 27,335 km² with 16 locations. California, with 53 locations, covers 423,965 km², and Colorado follows with 39 locations across 269,605 km². Notably, New Mexico and South Carolina have location counts of 15 and 14, respectively, but their land area data is unavailable.

Guardian Interlock's business status across U.S. states shows Kentucky with a 100% open rate, having all 20 locations operational. California follows with 92.5% of its 53 locations open. Texas and Florida have notably low open percentages, at 19.0% and 25.0% respectively, indicating more closures than openings in these states. Other states like Massachusetts and Colorado maintain higher open rates of 87.5% and 74.4%.
This section summarizes customer sentiment toward Guardian Interlock. Using ratings and review totals from 287 locations, we highlight where scores are consistently high and where feedback volume is greatest. Average star ratings reflect perceived quality, while total reviews indicate engagement and reach across the network.

Guardian Interlock's highest average rating in the United States is in Florida with a 3.7 score, followed by Colorado at 3.2 and California at 3.0. Maryland has the lowest average rating of 1.0, while Kentucky's rating data is unavailable. New Mexico leads in review count with 24, closely followed by Florida with 22 reviews.
Guardian Interlock's highest average rating is in Florida at 3.7, followed by Colorado with 3.2 and California at 3.0, while Maryland has the lowest average rating of 1.0. New Mexico leads in total reviews with 24, closely followed by Florida with 22 and Colorado with 18. Texas and South Carolina have 14 and 2 reviews respectively. Kentucky's average rating data is unavailable.

Guardian Interlock achieves full phone coverage in all listed states across the United States, with each state reporting 100% of locations equipped with phones. California leads with 53 sites, followed by Colorado with 39 and Maryland with 29. Other states, including Texas, Florida, and Kentucky, also maintain complete phone coverage, ranging from 13 to 21 sites each.
Guardian Interlock POI data enables clear measurement of footprint and demand. Analysts can rank states and cities by location count, compare coverage on a per-capita basis, and use traffic scores and review volumes to spot high-performing markets and under-served pockets. The result is an objective view of saturation, growth opportunities, and performance outliers.
For network planning, the data supports scoring candidate trade areas using location density, population per location, and nearby traffic intensity. Teams can evaluate cannibalization risk via nearest-store distance, surface whitespace along key corridors, and prioritize sites near retail anchors, campuses, or transit where observed activity is strongest.
Planners can map clusters and service gaps to understand commercial access at the neighborhood level. Per-capita coverage highlights communities with limited access, while changes in openings or closures signal shifts in activity. These insights inform corridor revitalization, streetscape and transit planning, and data-driven zoning decisions.