RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4636 locations in the last 30 days (4786 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/17/202610051 S CRANDON AVESouth Deering7Completed2 daysAlderman's OfficeCity 311
8/17/20261601 S ALLPORT STLower West Side25Completed10 daysMobile DeviceCity 311
8/17/20265236 S WOODLAWN AVEHyde Park5Completed2 daysPhone CallCity 311
8/17/20261458 W LELAND AVEUptown46Completed15 daysInternetCity 311
8/17/20265826 S NASHVILLE AVEGarfield Ridge13Completed10 daysInternetCity 311
8/17/202610532 S HOYNE AVEBeverly19Completed10 daysPhone CallCity 311
8/17/20264840 W GREGORY STForest Glen39Completed9 daysAlderman's OfficeCity 311
8/17/20261044 N LAWNDALE AVEHumboldt Park27Completed4 daysInternetCity 311
8/17/20265436 S KIMBARK AVEHyde Park5Completed2 daysPhone CallCity 311
8/17/20265237 W FOSTER AVEJefferson Park45Completed15 daysAlderman's OfficeCity 311
8/17/20263838 W 109TH PLMount Greenwood19Completed9 daysInternetCity 311
8/17/20265620 W WAVELAND AVEPortage Park38Completed8 daysMobile DeviceCity 311
8/17/20262150 N CALIFORNIA AVELogan Square1Completed9 daysMobile DeviceCity 311
8/17/20262752 S KEDVALE AVESouth Lawndale22Completed9 daysPhone CallCity 311
8/17/20265251 S MAY STNew City20Completed10 daysPhone CallCity 311
8/17/20261448 W HIGHLAND AVEEdgewater48Completed16 daysPhone CallCity 311
8/17/20269100 S CONSTANCE AVECalumet Heights8Completed9 daysPhone CallCity 311
8/17/20262251 W FULLERTON AVELogan Square32Completed14 daysMobile DeviceCity 311
8/17/20261712 W BELMONT AVELake View32Completed14 daysMobile DeviceCity 311
8/17/20261249 W 95TH PLWashington Heights21Completed11 daysMobile DeviceCity 311
8/17/20262707 N SOUTHPORT AVELincoln Park32Completed14 daysPhone CallCity 311
8/17/20264204 W POTOMAC AVEHumboldt Park37Completed16 daysMobile DeviceCity 311
8/17/20264715 N MAPLEWOOD AVELincoln Square40Completed11 daysInternetCity 311
8/17/20266527 N TROY STWest Ridge50Completed8 daysPhone CallCity 311
8/17/20266455 S NORMANDY AVEClearing13Completed10 daysInternetCity 311
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