RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4420 locations in the last 30 days (4581 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
5/12/20262747 W GREENLEAF AVEWest Ridge50Completed2 daysMobile DeviceCity 311
11/23/20253702 N SPAULDING AVEIrving Park33Completed2 daysInternetCity 311
8/22/20263711 N RICHMOND STIrving Park35Completed2 daysInternetCity 311
4/13/20262519 N LOWELL AVEHermosa31Completed2 daysPhone CallCity 311
5/27/20268826 S PARNELL AVEAuburn Gresham21Completed2 daysPhone CallCity 311
8/18/2026800 N STATE STNear North Side42Completed2 daysPhone CallCity 311
11/23/20253669 N ELSTON AVEIrving Park33Completed2 daysInternetCity 311
6/3/20264403 S SACRAMENTO AVEBrighton Park12Completed2 daysMobile DeviceCity 311
8/22/20263715 N RICHMOND STIrving Park35Completed2 daysInternetCity 311
10/20/20263032 W JARLATH STWest Ridge50Completed2 daysPhone CallCity 311
6/3/2026938 N DAMEN AVEWest Town36Completed2 daysInternetCity 311
7/6/20269607 S LASALLE STRoseland9Completed2 daysInternetCity 311
10/22/20256625 S MARSHFIELD AVEWest Englewood16Completed2 daysMobile DeviceCity 311
6/7/20264444 N CICERO AVEPortage Park45Completed2 daysMobile DeviceCity 311
5/20/20267951 S EVANS AVEChatham6Completed2 daysPhone CallCity 311
12/27/20251355 N LAWNDALE AVEHumboldt Park26Completed2 daysPhone CallCity 311
5/5/20263700 N OAKLEY AVENorth Center47Completed2 daysPhone CallCity 311
5/31/20263644 N LEAVITT STNorth Center47Completed2 daysMobile DeviceCity 311
11/5/20252929 N KOSTNER AVEHermosa31Completed2 daysPhone CallCity 311
6/23/20261722 W BELLE PLAINE AVELake View47Completed2 daysAlderman's OfficeCity 311
6/22/20267912 W BELMONT AVEDunning38Completed2 daysMobile DeviceCity 311
5/11/20266000 W MELROSE STDunning30Completed2 daysAlderman's OfficeCity 311
4/27/20267440 S SANGAMONEnglewood17Completed2 daysSalesforce Mobile AppCity 311
9/2/20262100 N PULASKIHermosa35Completed2 daysSalesforce Mobile AppCity 311
11/4/20256240 N KEYSTONE AVEForest Glen39Completed2 daysPhone CallCity 311
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