RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4417 locations in the last 30 days (4578 reports) · Last sighting yesterday

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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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/12/20262840 N MULLIGAN AVEBelmont Cragin30Completed10 daysPhone CallCity 311
7/12/20264254 N DAMEN AVENorth Center47Completed9 daysPhone CallCity 311
7/12/20264254 N DAMEN AVENorth Center47Completed9 daysInternetCity 311
7/12/20267036 W 63RD PLClearing13Completed1 dayMobile DeviceCity 311
7/12/20266700 S PERRY AVEGreater Grand Crossing6Completed4 daysPhone CallCity 311
7/12/20263012 W CHASE AVEWest Ridge50Completed2 daysInternetCity 311
7/12/20262214 W IRVING PARK RDNorth Center47Completed12 daysMobile DeviceCity 311
7/12/20262014 N MILWAUKEE AVELogan Square1Completed9 daysInternetCity 311
7/12/20266600 S RACINE AVEWest Englewood17Completed9 daysPhone CallCity 311
7/12/2026720 W OAKDALE AVELake View44Completed5 daysInternetCity 311
7/12/20261545 W JACKSON BLVDNear West Side34Completed1 dayInternetCity 311
7/12/2026780 S FEDERAL STLoop4Completed5 daysPhone CallCity 311
7/12/20263525 N NEVA AVEDunning38Completed2 daysInternetCity 311
7/12/2026300 E NORTH WATER STNear North Side42Completed1 dayInternetCity 311
7/12/20263943 W ERIE STHumboldt Park37Completed11 daysMobile DeviceCity 311
7/11/20265500 N LUNA AVEJefferson Park45Completed10 daysInternetCity 311
7/11/20261255 N CALIFORNIA AVEWest Town26Completed9 daysMobile DeviceCity 311
7/11/20265710 N MCVICKER AVENorwood Park45Completed10 daysInternetCity 311
7/11/20263834 W 83RD STAshburn18Completed9 daysMobile DeviceCity 311
7/11/20262235 N MULLIGAN AVEBelmont Cragin36Completed10 daysMobile DeviceCity 311
7/11/20265848 N TALMAN AVEWest Ridge40Completed5 daysPhone CallCity 311
7/11/20262409 S TROY STSouth Lawndale25Completed8 daysMobile DeviceCity 311
7/11/20262401 S TROY STSouth Lawndale25Completed8 daysMobile DeviceCity 311
7/11/202611841 S OAKLEY AVEMorgan Park19Completed10 daysInternetCity 311
7/11/20266104 N SHERIDAN RDEdgewater48Completed12 daysMobile DeviceCity 311
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