RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4458 locations in the last 30 days (4636 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/28/20254900 N MENARD AVEJefferson Park45Completed9 daysPhone CallCity 311
9/2/20253853 N SOUTHPORT AVELake View44Completed9 daysAlderman's OfficeCity 311
9/26/20261219 W LAWRENCE AVEUptown46Completed9 daysInternetCity 311
8/18/20254147 N MELVINA AVEPortage Park38Completed9 daysAlderman's OfficeCity 311
10/8/20253020 W CERMAK RDSouth Lawndale24Completed9 daysPhone CallCity 311
8/25/202611012 S FAIRFIELD AVEMorgan Park19Completed9 daysInternetCity 311
10/10/20266041 S COTTAGE GROVE AVEWoodlawn20Completed9 daysPhone CallCity 311
9/15/20257337 N HONORE STRogers Park49Completed9 daysPhone CallCity 311
10/7/20252037 N KILDARE AVEHermosa35Completed9 daysInternetCity 311
8/25/20252700 W BRYN MAWR AVEWest Ridge40Completed9 daysPhone CallCity 311
7/28/20255425 S CLAREMONT AVEGage Park16Completed9 daysInternetCity 311
8/6/20255028 W WEST WEST END AVEAustin28Completed9 daysPhone CallCity 311
9/17/20251067 N PAULINA STWest Town1Completed9 daysInternetCity 311
10/14/20256031 N AUSTIN AVEJefferson Park39Completed9 daysPhone CallCity 311
9/22/20264201 S MICHIGAN AVEGrand Boulevard3Completed9 daysPhone CallCity 311
9/21/202560 E CULLERTON STNear South Side3Completed9 daysInternetCity 311
8/18/20253955 N NORDICA AVEDunning38Completed9 daysMobile DeviceCity 311
10/14/20256031 N AUSTIN AVEJefferson Park39Completed9 daysPhone CallCity 311
9/14/20266155 W 59TH STClearing13Completed9 daysInternetCity 311
8/26/20267326 S SEELEY AVEWest Englewood17Completed9 daysAlderman's OfficeCity 311
9/21/20255718 W EASTWOOD AVEPortage Park45Completed9 daysMobile DeviceCity 311
7/8/20268330 S MANISTEE AVESouth Chicago7Completed9 daysPhone CallCity 311
8/20/20251464 W OHIO STWest Town1Completed9 daysInternetCity 311
7/20/20263826 N ALTA VISTA TERLake View46Completed9 daysInternetCity 311
9/17/20257338 N WINCHESTER AVERogers Park49Completed9 daysInternetCity 311
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