RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4542 locations in the last 30 days (4697 reports) · Last sighting 19 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/6/20264514 N MULLIGAN AVEPortage Park38Completed10 daysInternetCity 311
9/6/20261335 W WRIGHTWOOD AVELincoln Park32Completed11 daysMobile DeviceCity 311
9/6/2026219 E 45TH STGrand Boulevard3Completed2 daysInternetCity 311
9/6/20261433 N WELLS STNear North Side2Completed8 daysMobile DeviceCity 311
9/6/2026706 W BELDEN AVELincoln Park43Completed11 daysInternetCity 311
9/5/2026710 W BELDEN AVELincoln Park43Completed11 daysInternetCity 311
9/5/20263641 N WHIPPLE STIrving Park35Completed11 daysMobile DeviceCity 311
9/5/20264516 N MASON AVEPortage Park38Completed12 daysMobile DeviceCity 311
9/5/2026852 N HERMITAGE AVEWest Town1Completed13 daysMobile DeviceCity 311
9/5/20261420 W CHESTNUT STWest Town27Completed12 daysMobile DeviceCity 311
9/5/20264736 N DOVER STUptown46Completed13 daysInternetCity 311
9/5/20265837 S MOODY AVEGarfield Ridge13Completed11 daysInternetCity 311
9/5/20261723 W FARWELL AVERogers Park49Completed11 daysMobile DeviceCity 311
9/5/20263675 N ELSTON AVEIrving Park33Completed5 daysMobile DeviceCity 311
9/5/20263079 S BONFIELD STBridgeport11Completed12 daysPhone CallCity 311
9/5/20261648 E 84TH STAvalon Park8Completed12 daysInternetCity 311
9/5/20264947 N MARMORA AVEJefferson Park45Completed5 daysInternetCity 311
9/5/20265316 S MULLIGAN AVEGarfield Ridge23Completed12 daysMobile DeviceCity 311
9/5/202611154 S ESMOND STMorgan Park19Completed11 daysMobile DeviceCity 311
9/5/20266115 S MONITOR AVEClearing13Completed12 daysInternetCity 311
9/5/20264901 N ELSTON AVEAlbany Park39Completed12 daysPhone CallCity 311
9/5/20262655 N MAGNOLIA AVELincoln Park32Completed12 daysInternetCity 311
9/5/20263019 N OAK PARK AVEMontclare36Completed9 daysInternetCity 311
9/5/20264841 N LIPPS AVEJefferson Park45Completed13 daysInternetCity 311
9/5/20264717 N TROY STAlbany Park33Completed12 daysInternetCity 311
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