RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4476 locations in the last 30 days (4641 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/17/20262416 S AVERS AVESouth Lawndale22Open—Alderman's OfficeCity 311
9/17/20262143 W CRYSTAL STWest Town1Open—Mobile DeviceCity 311
9/15/20265341 N NOTTINGHAM AVENorwood Park41Open—InternetCity 311
9/17/20265515 N NASHVILLE AVENorwood Park41Open—Phone CallCity 311
9/15/20262850 W ADDISON STIrving Park35Open—Phone CallCity 311
9/19/20261724 W ROSCOE STLake View47Open—InternetCity 311
9/15/20265500 S WINCHESTER AVEWest Englewood16Open—Phone CallCity 311
9/14/20265120 N WOLCOTT AVELincoln Square40Open—Mobile DeviceCity 311
9/14/20265608 N KEYSTONE AVENorth Park39Open—Alderman's OfficeCity 311
9/18/2026920 N TRUMBULL AVEHumboldt Park27Open—Phone CallCity 311
9/18/20264113 N WESTERN AVENorth Center47Open—InternetCity 311
9/15/20266100 S MARSHFIELD AVEWest Englewood15Open—Phone CallCity 311
9/18/20262258 N MANGO AVEBelmont Cragin36Open—Phone CallCity 311
9/16/20264526 N SPAULDING AVEAlbany Park33Open—Mobile DeviceCity 311
9/18/20264445 S MARSHFIELD AVENew City15Open—InternetCity 311
9/15/2026205 S WESTERN AVENear West Side27Open—Phone CallCity 311
9/21/202612029 S PARNELLWest Pullman21Open—Salesforce Mobile AppCity 311
9/15/20266045 W FULLERTON AVEBelmont Cragin36Open—Phone CallCity 311
9/18/20265525 S MOODY AVEGarfield Ridge13Open—InternetCity 311
9/15/2026601 W 47TH STNew City15Open—Phone CallCity 311
9/19/20264912 S KNOX AVEGarfield Ridge14Open—InternetCity 311
9/16/20262748 S TRUMBULL AVESouth Lawndale22Open—InternetCity 311
9/15/20263236 W FULLERTON AVELogan Square35Open—Phone CallCity 311
9/15/20266300 N HERMITAGE AVEEdgewater40Open—Phone CallCity 311
9/11/20264610 N MAGNOLIA AVEUptown46Open—InternetCity 311
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