RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4417 locations in the last 30 days (4580 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

57,418 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/3/20252316 S LEAVITT STLower West Side25Completed3 daysPhone CallCity 311
9/29/20262316 W DIVERSEY AVELogan Square32Completed15 daysInternetCity 311
4/27/20262316 W GIDDINGS STLincoln Square47Completed4 daysMobile DeviceCity 311
11/12/20252316 W HARRISON STNear West Side28Completed1 dayMobile DeviceCity 311
4/2/20262316 W HARRISON STNear West Side28Completed0 daysMobile DeviceCity 311
5/15/20262316 W HURON STWest Town36Completed4 daysAlderman's OfficeCity 311
5/26/20262316 W LUNT AVEWest Ridge50Completed3 daysInternetCity 311
11/17/20252316 W SUNNYSIDE AVELincoln Square47Completed1 dayMobile DeviceCity 311
10/14/20262316 W WALTON STWest Town36Completed5 daysInternetCity 311
10/20/20252316 W WALTON STWest Town36Completed7 daysInternetCity 311
9/23/20252317 N HAMLIN AVELogan Square35Completed10 daysAlderman's OfficeCity 311
9/9/20262317 N KIMBALL AVELogan Square35Completed13 daysMobile DeviceCity 311
10/1/20252317 N LOCKWOOD AVEBelmont Cragin31Completed13 daysPhone CallCity 311
10/1/20252317 N LOCKWOOD AVEBelmont Cragin31Completed13 daysAlderman's OfficeCity 311
10/22/20252317 N MEADE AVEBelmont Cragin36Completed5 daysInternetCity 311
1/9/20262317 N NEVA AVEAustin29Completed4 daysPhone CallCity 311
9/14/20262317 N ORCHARDLincoln Park43Completed15 daysSalesforce Mobile AppCity 311
9/24/20262317 N ORCHARD STLincoln Park43Completed5 daysMobile DeviceCity 311
10/27/20252317 N ORCHARD STLincoln Park43Completed4 daysMobile DeviceCity 311
8/10/20262317 N RIDGEWAY AVELogan Square35Completed14 daysInternetCity 311
9/30/20252317 S CENTRAL PARK AVESouth Lawndale22Completed7 daysPhone CallCity 311
10/14/20262317 S HOMAN AVESouth Lawndale22Completed9 daysInternetCity 311
10/5/20262317 W ADDISON STNorth Center32Completed15 daysPhone CallCity 311
4/26/20262317 W ADDISON STNorth Center32Completed2 daysInternetCity 311
7/20/20262317 W BARRY AVENorth Center32Completed9 daysMobile DeviceCity 311
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