RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4557 locations in the last 30 days (4712 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/20/202510850 S WABASH AVERoseland9Completed6 daysPhone CallCity 311
9/20/20251036 W LOYOLA AVERogers Park49Completed11 daysInternetCity 311
9/20/20252703 S TROY STSouth Lawndale25Completed2 daysInternetCity 311
9/20/20253520 W DICKENS AVELogan Square35Completed13 daysMobile DeviceCity 311
9/20/20254509 N GREENVIEW AVEUptown47Completed10 daysMobile DeviceCity 311
9/20/20251525 W BIRCHWOOD AVERogers Park49Completed6 daysPhone CallCity 311
9/20/2025221 E IDA B WELLS DRLoop42Completed6 daysInternetCity 311
9/20/20254926 N DRAKE AVEAlbany Park33Completed10 daysInternetCity 311
9/20/20251823 S LAFLIN STLower West Side25Completed10 daysInternetCity 311
9/20/20256209 W BERTEAU AVEPortage Park38Completed11 daysInternetCity 311
9/20/20251337 W FLOURNOY STNear West Side34Completed2 daysPhone CallCity 311
9/20/20252354 W WILSON AVELincoln Square47Completed10 daysInternetCity 311
9/20/20254613 S CHAMPLAIN AVEGrand Boulevard4Completed10 daysMobile DeviceCity 311
9/20/20252448 N MONTICELLO AVELogan Square35Completed11 daysMobile DeviceCity 311
9/20/20252649 W CORTEZ STWest Town36Completed9 daysMobile DeviceCity 311
9/20/20257044 N MANKATO AVEForest Glen45Completed10 daysInternetCity 311
9/20/20254042 N ELSTON AVEIrving Park45Completed10 daysInternetCity 311
9/20/20255100 N MULLIGAN AVEJefferson Park41Completed10 daysMobile DeviceCity 311
9/20/2025234 W 27TH STArmour Square11Completed9 daysInternetCity 311
9/20/20251612 W HOMER STLogan Square32Completed10 daysInternetCity 311
9/20/20251439 W WARNER AVELake View47Completed10 daysMobile DeviceCity 311
9/20/20256030 W MELROSE STDunning30Completed9 daysMobile DeviceCity 311
9/20/20254514 S WOOD STNew City15Completed11 daysInternetCity 311
9/20/2025837 E 88TH PLChatham8Completed9 daysInternetCity 311
9/20/20253944 W 56TH STWest Elsdon23Completed10 daysInternetCity 311
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