RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4251 locations in the last 30 days (4433 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/28/20251648 W NELSON STLake View32Completed4 daysInternetCity 311
11/28/20252141 W 52ND STNew City16Completed3 daysPhone CallCity 311
11/28/20254127 N CENTRAL PARK AVEIrving Park33Completed3 daysInternetCity 311
11/28/20257509 N SHERIDAN RDRogers Park49Completed3 daysInternetCity 311
11/28/20252612 W CORTLAND STLogan Square1Completed3 daysInternetCity 311
11/28/20254832 N BELL AVELincoln Square47Completed3 daysInternetCity 311
11/28/20257214 S LOWE AVEEnglewood6Completed5 daysInternetCity 311
11/28/20254120 N ASHLAND AVELake View47Completed3 daysPhone CallCity 311
11/29/20252136 W ARTHUR AVEWest Ridge50Completed2 daysInternetCity 311
11/29/20256225 W CUYLER AVEPortage Park38Completed2 daysPhone CallCity 311
11/29/20253550 N OPAL AVEDunning38Completed2 daysInternetCity 311
11/29/20252650 W 23RD STSouth Lawndale25Completed3 daysInternetCity 311
11/29/202514 W ERIE STNear North Side42Completed2 daysMobile DeviceCity 311
11/29/20253669 N ELSTON AVEIrving Park33Completed4 daysMobile DeviceCity 311
11/29/20251956 S HAMLIN AVENorth Lawndale24Completed2 daysPhone CallCity 311
11/29/20256253 W WABANSIA AVEAustin29Completed2 daysInternetCity 311
11/29/20255006 S ARTESIAN AVEGage Park15Completed2 daysMobile DeviceCity 311
11/29/20257425 S COLES AVESouth Shore7Completed3 daysMobile DeviceCity 311
11/29/20251938 W BELLE PLAINE AVENorth Center47Completed2 daysMobile DeviceCity 311
11/29/20251937 N LARRABEE STLincoln Park43Completed3 daysMobile DeviceCity 311
11/29/20251145 W ADDISON STLake View44Completed3 daysInternetCity 311
11/29/20256131 S NATCHEZ AVEClearing13Completed2 daysInternetCity 311
11/30/20256232 W BARRY AVEBelmont Cragin30Completed2 daysPhone CallCity 311
11/30/20253101 N CLARK STLake View44Completed2 daysInternetCity 311
11/30/20253620 N HERMITAGE AVELake View47Completed1 dayMobile DeviceCity 311
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