RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4430 locations in the last 30 days (4587 reports) · Last sighting 8 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.

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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

57,080 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/15/2026320 W 27TH STArmour Square11Completed9 daysInternetCity 311
7/15/20263709 N OSCEOLA AVEDunning38Completed13 daysPhone CallCity 311
7/15/202610520 S LAWNDALE AVEMount Greenwood19Completed9 daysPhone CallCity 311
7/15/20263425 W BELDEN AVELogan Square35Completed7 daysInternetCity 311
7/15/20266927 S ADA STWest Englewood17Completed9 daysPhone CallCity 311
7/15/20264431 N CHRISTIANA AVEAlbany Park33Completed7 daysAlderman's OfficeCity 311
7/15/20262237 W 19TH STLower West Side25Completed9 daysMobile DeviceCity 311
7/15/20265200 S KILBOURN AVEArcher Heights23Completed5 daysAlderman's OfficeCity 311
7/15/20263942 W 64TH STWest Lawn23Completed7 daysAlderman's OfficeCity 311
7/15/20261831 N KOSTNER AVEHermosa26Completed9 daysPhone CallCity 311
7/15/20265707 S ARCHER AVEGarfield Ridge23Completed5 daysAlderman's OfficeCity 311
7/15/20269601 S DOBSON AVEPullman8Completed12 daysAlderman's OfficeCity 311
7/15/20269606 S DOBSON AVEPullman8Completed12 daysAlderman's OfficeCity 311
7/15/20261752 W OLIVE AVEEdgewater40Completed9 daysInternetCity 311
7/15/20263673 N ELSTON AVEIrving Park33Completed7 daysMobile DeviceCity 311
7/15/202612324 S EMERALD AVEWest Pullman9Completed6 daysPhone CallCity 311
7/15/20266548 N NIXON AVENorwood Park41Completed2 daysInternetCity 311
7/15/202611034 S HARDING AVEMount Greenwood19Completed6 daysPhone CallCity 311
7/15/2026849 W BUCKINGHAM PLLake View44Completed12 daysMobile DeviceCity 311
7/15/20263019 W FULLERTON AVELogan Square35Completed9 daysPhone CallCity 311
7/15/20261416 W ERIE STWest Town27Completed8 daysMobile DeviceCity 311
7/15/20266129 W WAVELAND AVEDunning38Completed12 daysInternetCity 311
7/15/20266335 W HYACINTH STNorwood Park39Completed8 daysMobile DeviceCity 311
7/15/20261102 W BARRY AVELake View44Completed12 daysAlderman's OfficeCity 311
7/15/2026824 W NEWPORT AVELake View44Completed7 daysInternetCity 311
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