RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4481 locations in the last 30 days (4646 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.

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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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/1/2025633 N MICHIGAN AVENear North Side42Completed4 daysInternetCity 311
8/1/20251738 N AUSTIN AVEAustin29Completed7 daysPhone CallCity 311
8/1/20254039 W MARQUETTE RDWest Lawn23Completed11 daysAlderman's OfficeCity 311
8/1/202513418 S BURLEY AVEHegewisch10Completed5 daysMobile DeviceCity 311
8/1/20251108 W NORTH SHORE AVERogers Park49Completed4 daysInternetCity 311
8/1/20258820 S BURLEY AVESouth Chicago10Completed3 daysPhone CallCity 311
8/1/2025512 S ASHLAND AVENear West Side27Completed7 daysPhone CallCity 311
8/1/20252624 W HURON STWest Town36Completed13 daysMobile DeviceCity 311
8/1/20255516 W BRYN MAWR AVEJefferson Park45Completed5 daysAlderman's OfficeCity 311
8/1/20257011 S BISHOP STWest Englewood17Completed10 daysPhone CallCity 311
8/1/20251710 W ALTGELD STLincoln Park32Completed7 daysPhone CallCity 311
8/1/202510350 S CALUMET AVERoseland9Completed5 daysPhone CallCity 311
8/1/2025500 W 32ND STBridgeport11Completed7 daysAlderman's OfficeCity 311
8/1/20255254 W AGATITE AVEPortage Park45Completed6 daysAlderman's OfficeCity 311
8/1/202511321 S WASHTENAW AVEMorgan Park19Completed12 daysInternetCity 311
8/1/20254660 W WEST WEST END AVEAustin28Completed7 daysPhone CallCity 311
8/1/20255807 N MARKHAM AVEJefferson Park45Completed5 daysInternetCity 311
8/1/2025857 N DAMEN AVEWest Town36Completed13 daysPhone CallCity 311
8/1/20255672 N NEVA AVENorwood Park41Completed6 daysInternetCity 311
8/1/20255207 S DREXEL AVEHyde Park20Completed10 daysInternetCity 311
8/1/20254438 S INDIANA AVEGrand Boulevard3Completed4 daysMobile DeviceCity 311
8/1/20256018 N DAMEN AVEWest Ridge40Completed6 daysInternetCity 311
8/1/20256007 S AUSTIN AVEClearing13Completed3 daysMobile DeviceCity 311
8/1/2025640 W IRVING PARK RDUptown46Completed11 daysPhone CallCity 311
8/1/20251256 W WEBSTER AVELincoln Park2Completed10 daysAlderman's OfficeCity 311
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