RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4558 locations in the last 30 days (4708 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.

32080fewer → more

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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/22/20253854 W 109TH PLMount Greenwood19Completed6 daysPhone CallCity 311
8/22/20252237 N NEVA AVEAustin29Completed12 daysMobile DeviceCity 311
8/22/20254708 N CAMPBELL AVELincoln Square40Completed13 daysInternetCity 311
8/22/20253844 S LOWE AVEBridgeport11Completed12 daysInternetCity 311
8/22/20254140 N MOODY AVEPortage Park38Completed6 daysInternetCity 311
8/22/202511763 S HALSTED STWest Pullman21Completed12 daysPhone CallCity 311
8/22/20252006 N NARRAGANSETT AVEBelmont Cragin36Completed11 daysMobile DeviceCity 311
8/22/20257504 S WENTWORTH AVEGreater Grand Crossing6Completed4 daysMobile DeviceCity 311
8/22/20252703 W THOMAS STWest Town36Completed12 daysMobile DeviceCity 311
8/22/20255422 N MULLIGAN AVEJefferson Park41Completed6 daysMobile DeviceCity 311
8/22/20254113 W NELSON STAvondale31Completed11 daysPhone CallCity 311
8/22/202510529 S CLAREMONT AVEBeverly19Completed12 daysMobile DeviceCity 311
8/22/20259320 S ESCANABA AVECalumet Heights7Completed5 daysInternetCity 311
8/22/20253628 N PAULINA STLake View47Completed12 daysMobile DeviceCity 311
8/22/20253636 N PAULINA STLake View47Completed12 daysMobile DeviceCity 311
8/23/20254737 S HERMITAGE AVENew City15Completed5 daysInternetCity 311
8/23/20253056 N MONTICELLO AVEAvondale35Completed6 daysMobile DeviceCity 311
8/23/20252116 W BARRY AVENorth Center32Completed13 daysInternetCity 311
8/23/20257405 S INDIANA AVEGreater Grand Crossing6Completed4 daysPhone CallCity 311
8/23/20251662 N BISSELL STLincoln Park43Completed12 daysMobile DeviceCity 311
8/23/20253529 N NORA AVEDunning38Completed11 daysInternetCity 311
8/23/20255037 S DREXEL BLVDKenwood4Completed6 daysMobile DeviceCity 311
8/23/20253670 N ELSTON AVEIrving Park35Completed11 daysInternetCity 311
8/23/20253683 N ELSTON AVEIrving Park33Completed12 daysInternetCity 311
8/23/20253746 N ASHLAND AVELake View47Completed12 daysInternetCity 311
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