RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4549 locations in the last 30 days (4696 reports) · Last sighting 22 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.

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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/10/20262518 N FAIRFIELD AVELogan Square1Open—InternetCity 311
10/10/20262413 N SPAULDING AVELogan Square35Open—Mobile DeviceCity 311
10/10/20262022 W MAYPOLE AVENear West Side27Open—InternetCity 311
10/10/20261851 W IOWA STWest Town36Open—Mobile DeviceCity 311
10/10/202610837 S DR MARTIN LUTHER KING JR DRRoseland9Open—Mobile DeviceCity 311
10/10/20263545 W BELMONT AVEAvondale35Open—InternetCity 311
10/10/20263459 W BELMONT AVEAvondale35Open—InternetCity 311
10/10/20262612 W FULLERTON AVELogan Square1Open—InternetCity 311
10/10/20262606 N SAWYER AVELogan Square35Open—InternetCity 311
10/10/20267550 S ESSEX AVESouth Shore7Open—InternetCity 311
10/10/20261434 N LAWLER AVEAustin37Open—Mobile DeviceCity 311
10/10/20262613 W LELAND AVELincoln Square47Open—Mobile DeviceCity 311
10/10/20266055 W BARRY AVEBelmont Cragin30Open—Phone CallCity 311
10/10/20261053 W 32ND STBridgeport11Open—InternetCity 311
10/10/20266731 N ODELL AVEEdison Park41Open—Mobile DeviceCity 311
10/10/20262313 N SPRINGFIELD AVELogan Square35Open—Mobile DeviceCity 311
10/10/20262613 W 24TH PLSouth Lawndale25Open—Mobile DeviceCity 311
10/10/20264758 S WOOD STNew City15Open—InternetCity 311
10/10/20266650 N FAIRFIELD AVEWest Ridge50Open—Mobile DeviceCity 311
10/10/20263351 N WOLCOTT AVENorth Center32Open—Mobile DeviceCity 311
10/10/20265832 S TRIPP AVEWest Elsdon13Open—Mobile DeviceCity 311
10/10/20268935 S HERMITAGEAuburn Gresham21Open—Salesforce Mobile AppCity 311
10/10/20265834 S TRIPP AVEWest Elsdon13Open—Mobile DeviceCity 311
10/10/20265437 W WARWICK AVEPortage Park30Open—Mobile DeviceCity 311
10/10/20261641 W ADDISON STLake View47Open—Mobile DeviceCity 311
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