RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4534 locations in the last 30 days (4689 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.

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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

1,046 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20261928 W 35TH STMcKinley Park12Open—InternetCity 311
9/21/202612029 S PARNELLWest Pullman21Completed4 daysSalesforce Mobile AppCity 311
9/21/20264027 W NELSON STAvondale31Open—Mobile DeviceCity 311
9/21/202612030 S NORMALWest Pullman21Completed4 daysSalesforce Mobile AppCity 311
9/21/20264840 S LAMON AVEGarfield Ridge22Open—Phone CallCity 311
9/21/20263731 N PAULINA STLake View47Open—InternetCity 311
9/21/20263730 W CORNELIA AVEAvondale30Open—InternetCity 311
9/21/20263732 W CORNELIA AVEAvondale30Open—InternetCity 311
9/21/20263820 W NORTH AVEHumboldt Park26Open—Mobile DeviceCity 311
9/21/20262839 S DRAKE AVESouth Lawndale22Open—InternetCity 311
9/21/20264432 N SPAULDING AVEAlbany Park33Open—InternetCity 311
9/21/20268234 S PAULINA STAuburn Gresham17Open—Phone CallCity 311
9/21/20264316 W WRIGHTWOOD AVEHermosa31Open—Phone CallCity 311
9/21/20261123 W BELMONT AVELake View44Open—Mobile DeviceCity 311
9/21/20262600 W NORTH SHORE AVEWest Ridge50Open—Mobile DeviceCity 311
9/21/20266722 N ROCKWELL STWest Ridge50Open—Mobile DeviceCity 311
9/21/20266936 S RACINE AVEWest Englewood17Open—InternetCity 311
9/21/2026116 W ELM STNear North Side27Open—Mobile DeviceCity 311
9/21/20261343 W GEORGE STLake View32Open—Mobile DeviceCity 311
9/21/20261220 N WASHTENAW AVEWest Town26Open—Mobile DeviceCity 311
9/21/20261300 W EDDY STLake View44Open—InternetCity 311
9/21/20265905 W 64TH STClearing13Open—InternetCity 311
9/21/20261289 W 73RD STWest Englewood17Open—InternetCity 311
9/21/20262542 N ASHLAND AVELincoln Park32Open—Mobile DeviceCity 311
9/21/20267520 S WABASH AVEGreater Grand Crossing6Open—Phone CallCity 311
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