RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4427 locations in the last 30 days (4592 reports) · Last sighting 20 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

931 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/15/20265442 N NEWCASTLE AVENorwood Park41Open—Phone CallCity 311
10/15/20263054 N RACINE AVELake View32Completed1 dayPhone CallCity 311
10/15/20266949 S MAY STEnglewood16Open—Mobile DeviceCity 311
10/15/20266953 S MAY STEnglewood16Open—Mobile DeviceCity 311
10/15/20263214 W 63RD PLChicago Lawn14Open—Phone CallCity 311
10/15/20265504 N MELVINA AVEJefferson Park45Open—InternetCity 311
10/14/20266219 S NATOMA AVEClearing13Open—InternetCity 311
10/14/20263421 N ASHLAND AVELake View47Open—Mobile DeviceCity 311
10/14/20262500 N MANGO AVEBelmont Cragin30Open—InternetCity 311
10/14/20265608 S SEELEY AVEWest Englewood15Open—Mobile DeviceCity 311
10/14/202610712 S SACRAMENTO AVEMount Greenwood19Open—Mobile DeviceCity 311
10/14/20263508 W PIERCE AVEHumboldt Park26Open—InternetCity 311
10/14/2026209 E 69TH PLGreater Grand Crossing6Open—Mobile DeviceCity 311
10/14/20263900 W 57TH STWest Elsdon23Open—Phone CallCity 311
10/14/20263928 N PINE GROVE AVELake View46Open—InternetCity 311
10/14/2026130 N LARAMIE AVEAustin37Open—Mobile DeviceCity 311
10/14/20261743 S UNION AVELower West Side25Open—InternetCity 311
10/14/20264816 N HARDING AVEAlbany Park39Open—InternetCity 311
10/14/20263414 N OZANAM AVEDunning38Open—InternetCity 311
10/14/20261815 N MAYFIELD AVEAustin29Open—Mobile DeviceCity 311
10/14/20264341 W PARKER AVEHermosa31Open—Mobile DeviceCity 311
10/14/20264337 W PARKER AVEHermosa31Open—Mobile DeviceCity 311
10/14/20262717 N MULLIGAN AVEBelmont Cragin36Open—Mobile DeviceCity 311
10/14/2026729 W ROSCOE STLake View44Open—InternetCity 311
10/14/2026128 N LARAMIE AVEAustin37Open—Mobile DeviceCity 311
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