RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4587 locations in the last 30 days (4735 reports) · Last sighting 14 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.

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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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/18/20262023 W ADDISON STNorth Center47Completed11 daysMobile DeviceCity 311
9/14/20261412 W BERTEAU AVELake View47Completed11 daysPhone CallCity 311
8/3/20262149 W LELAND AVELincoln Square47Completed11 daysMobile DeviceCity 311
7/25/20253759 N KENMORE AVELake View44Completed11 daysInternetCity 311
8/7/20256700 W 63RD STClearing13Completed11 daysInternetCity 311
9/11/20252529 N MEADE AVEBelmont Cragin30Completed11 daysAlderman's OfficeCity 311
8/1/202511115 S BISHOP STMorgan Park21Completed11 daysPhone CallCity 311
9/20/20251036 W LOYOLA AVERogers Park49Completed11 daysInternetCity 311
7/23/20264532 N LAWNDALE AVEAlbany Park33Completed11 daysMobile DeviceCity 311
9/12/202510938 S MILLARD AVEMount Greenwood19Completed11 daysInternetCity 311
9/12/20251535 W CHESTNUT STWest Town1Completed11 daysPhone CallCity 311
8/22/20253216 W VICTORIA STNorth Park39Completed11 daysPhone CallCity 311
9/12/20251646 W 18TH STLower West Side25Completed11 daysAlderman's OfficeCity 311
8/30/2026935 W GUNNISON STUptown46Completed11 daysInternetCity 311
9/13/2026656 W ALDINE AVELake View44Completed11 daysInternetCity 311
8/31/20262550 N CLARK STLincoln Park43Completed11 daysPhone CallCity 311
9/11/20252322 W BELDEN AVELogan Square32Completed11 daysMobile DeviceCity 311
9/24/20262708 N DRAKE AVELogan Square35Completed11 daysMobile DeviceCity 311
9/12/20256221 N KARLOV AVEForest Glen39Completed11 daysAlderman's OfficeCity 311
8/29/20255335 W QUINCY STAustin29Completed11 daysPhone CallCity 311
7/18/20264627 W ARMITAGE AVEBelmont Cragin36Completed11 daysMobile DeviceCity 311
7/2/20268250 W BELMONT AVEDunning38Completed11 daysPhone CallCity 311
8/8/20252351 W ADAMS STNear West Side27Completed11 daysPhone CallCity 311
10/9/20254917 W MELROSE STPortage Park31Completed11 daysPhone CallCity 311
7/24/20261530 N AVERS AVEHumboldt Park26Completed11 daysPhone CallCity 311
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