RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4682 locations in the last 30 days (4841 reports) · Last sighting 15 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/31/20262216 S ST LOUIS AVESouth Lawndale22Completed16 daysPhone CallCity 311
8/31/20266324 S KOSTNERWest Lawn13Completed14 daysSalesforce Mobile AppCity 311
8/31/20266342 S KOSTNERWest Lawn13Completed14 daysSalesforce Mobile AppCity 311
8/31/20268026 S FAIRFIELD AVEAshburn18Completed14 daysInternetCity 311
8/31/20263211 S PULASKI RDSouth Lawndale22Completed16 daysPhone CallCity 311
8/31/20263211 S PULASKI RDSouth Lawndale22Completed16 daysPhone CallCity 311
8/31/20263123 N OCONTODunning29Completed4 daysSalesforce Mobile AppCity 311
8/31/20262531 W 109TH STMorgan Park19Completed4 daysPhone CallCity 311
8/31/20266908 S PERRY AVEGreater Grand Crossing6Completed8 daysPhone CallCity 311
8/31/20261949 W BALMORAL AVELincoln Square40Completed11 daysMobile DeviceCity 311
8/31/20266240 N KEDVALE AVEForest Glen39Completed14 daysInternetCity 311
8/31/20267538 S HONORE STAuburn Gresham17Completed10 daysPhone CallCity 311
8/31/20264414 N ASHLAND AVEUptown47Completed15 daysInternetCity 311
8/31/20265052 W OAKDALE AVEBelmont Cragin31Completed14 daysPhone CallCity 311
8/31/20266000 W SHERWIN AVEForest Glen45Completed15 daysPhone CallCity 311
8/31/20263647 N JANSSEN AVELake View44Completed9 daysPhone CallCity 311
8/31/20262136 S FAIRFIELD AVESouth Lawndale25Completed11 daysPhone CallCity 311
8/31/20266577 N CALDWELL AVEForest Glen45Completed15 daysPhone CallCity 311
8/31/20267330 S PRAIRIE AVEGreater Grand Crossing6Completed8 daysPhone CallCity 311
8/31/20262019 N KARLOV AVEHermosa26Completed1 dayPhone CallCity 311
8/31/20265214 W QUINCY STAustin29Completed4 daysAlderman's OfficeCity 311
8/31/20261822 N RICHMOND STLogan Square26Completed1 dayPhone CallCity 311
8/31/20263175 N HUDSON AVELake View44Completed11 daysInternetCity 311
8/31/20264546 N ALBANY AVEAlbany Park33Completed15 daysInternetCity 311
8/31/20263356 N NAGLE AVEDunning38Completed1 dayMobile DeviceCity 311
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