RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4744 locations in the last 30 days (4895 reports) · Last sighting 12 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/20/202650 W 55TH STWashington Park20Completed7 daysInternetCity 311
8/20/20264136 S MAPLEWOOD AVEBrighton Park12Completed15 daysPhone CallCity 311
8/20/20264828 W SCHOOL STPortage Park31Completed13 daysMobile DeviceCity 311
8/20/20265320 W FLETCHER STBelmont Cragin30Completed13 daysMobile DeviceCity 311
8/20/20261033 N MENARDAustin29Completed11 daysSalesforce Mobile AppCity 311
8/20/20265142 S LAWNDALE AVEWest Elsdon23Completed11 daysPhone CallCity 311
8/20/20265936 N ST LOUIS AVENorth Park39Completed0 daysInternetCity 311
8/20/20262257 S SACRAMENTO AVESouth Lawndale24Completed13 daysMobile DeviceCity 311
8/20/20262255 S SACRAMENTO AVESouth Lawndale24Completed13 daysMobile DeviceCity 311
8/19/202610315 S CALIFORNIA AVEBeverly19Completed14 daysInternetCity 311
8/19/20265301 S MERRIMAC AVEGarfield Ridge23Completed11 daysAlderman's OfficeCity 311
8/19/20265300 S MERRIMAC AVEGarfield Ridge23Completed11 daysAlderman's OfficeCity 311
8/19/20263608 W GRACE STIrving Park30Completed13 daysMobile DeviceCity 311
8/19/20262710 W THOMAS STWest Town36Completed13 daysInternetCity 311
8/19/2026846 N ST LOUIS AVEHumboldt Park27Completed12 daysMobile DeviceCity 311
8/19/20262886 N MILWAUKEE AVEAvondale35Completed13 daysMobile DeviceCity 311
8/19/20261547 W THOMAS STWest Town1Completed12 daysMobile DeviceCity 311
8/19/20261515 W HADDON AVEWest Town1Completed12 daysMobile DeviceCity 311
8/19/20261532 W 18TH STLower West Side25Completed13 daysMobile DeviceCity 311
8/19/20262971 S FEDERAL STDouglas3Completed7 daysPhone CallCity 311
8/19/20264055 N MOODY AVEPortage Park38Completed12 daysInternetCity 311
8/19/20263136 N DAMEN AVENorth Center32Completed14 daysInternetCity 311
8/19/20262852 W BELDEN AVELogan Square1Completed12 daysMobile DeviceCity 311
8/19/2026448 N STATE STNear North Side42Completed1 dayInternetCity 311
8/19/20264311 W 47TH STArcher Heights14Completed12 daysInternetCity 311
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