RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4466 locations in the last 30 days (4626 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/11/20264512 W MONROE STWest Garfield Park28Open—Phone CallCity 311
9/11/20262326 N SOUTHPORT AVELincoln Park2Completed11 daysInternetCity 311
9/11/20264035 S MAPLEWOOD AVEBrighton Park12Completed13 daysInternetCity 311
9/11/20268145 S ALBANY AVEAshburn18Completed13 daysAlderman's OfficeCity 311
9/11/20262014 N SHEFFIELD AVELincoln Park43Completed13 daysPhone CallCity 311
9/11/20263937 W 105TH STMount Greenwood19Completed12 daysInternetCity 311
9/11/20262526 N ROCKWELL STLogan Square1Completed12 daysInternetCity 311
9/11/20262900 N RICHMOND STAvondale35Completed10 daysMobile DeviceCity 311
9/11/2026750 W BELDEN AVELincoln Park43Completed12 daysInternetCity 311
9/11/20265143 S KIMBARK AVEHyde Park4Completed12 daysPhone CallCity 311
9/11/20265421 W WINDSORPortage Park45Completed6 daysSalesforce Mobile AppCity 311
9/11/2026852 N HOYNE AVEWest Town36Completed13 daysInternetCity 311
9/11/20263140 N NATCHEZ AVEBelmont Cragin36Completed12 daysPhone CallCity 311
9/11/20264183 S EMERALD AVENew City11Completed12 daysAlderman's OfficeCity 311
9/11/20262953 N MULLIGAN AVEBelmont Cragin30Completed14 daysPhone CallCity 311
9/11/20261222 W ARGYLE STUptown47Completed11 daysInternetCity 311
9/11/20263926 W 102ND STMount Greenwood19Completed3 daysPhone CallCity 311
9/11/20261125 N DAMEN AVEWest Town1Completed12 daysInternetCity 311
9/11/2026931 W GUNNISON STUptown46Completed10 daysInternetCity 311
9/11/20263516 W HURON STHumboldt Park27Completed6 daysPhone CallCity 311
9/11/20264836 N HERMITAGE AVEUptown47Completed11 daysInternetCity 311
9/11/20264508 N WHIPPLE STAlbany Park33Completed13 daysInternetCity 311
9/11/20263713 N PAULINA STLake View47Completed3 daysPhone CallCity 311
9/11/20261229 S AVERS AVENorth Lawndale24Completed12 daysPhone CallCity 311
9/11/20261822 S SPAULDING AVENorth Lawndale24Completed12 daysMobile DeviceCity 311
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