RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4223 locations in the last 30 days (4376 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/3/20257844 S CARPENTER STAuburn Gresham17Completed6 daysInternetCity 311
10/3/2025854 N HERMITAGE AVEWest Town1Completed6 daysMobile DeviceCity 311
10/3/202510732 S HOMAN AVEMount Greenwood19Completed4 daysMobile DeviceCity 311
10/3/2025163 W BURTON PLNear North Side2Completed7 daysMobile DeviceCity 311
10/3/2025172 W BURTON PLNear North Side2Completed7 daysMobile DeviceCity 311
10/3/20255546 N LOTUS AVEJefferson Park45Completed12 daysInternetCity 311
10/3/20252315 W SUPERIOR STWest Town36Completed11 daysInternetCity 311
10/3/20253017 N ELBRIDGE AVEAvondale35Completed11 daysMobile DeviceCity 311
10/3/20251460 W HURON STWest Town27Completed4 daysInternetCity 311
10/3/20252920 S THROOP STBridgeport11Completed7 daysMobile DeviceCity 311
10/3/20252949 S WALLACE STBridgeport11Completed6 daysInternetCity 311
10/3/2025750 N CENTRAL AVEAustin29Completed5 daysMobile DeviceCity 311
10/3/20252336 W THOMAS STWest Town1Completed6 daysMobile DeviceCity 311
10/3/2025737 N NOBLE STWest Town27Completed5 daysMobile DeviceCity 311
10/3/20255306 S MERRIMAC AVEGarfield Ridge23Completed4 daysMobile DeviceCity 311
10/3/2025128 N LARAMIE AVEAustin37Completed11 daysMobile DeviceCity 311
10/3/20253702 W DICKENS AVELogan Square35Completed11 daysInternetCity 311
10/4/20259764 S CLAREMONT AVEBeverly19Completed10 daysInternetCity 311
10/4/20251246 W 31ST STBridgeport11Completed6 daysInternetCity 311
10/4/20253415 S RACINE AVEBridgeport11Completed6 daysInternetCity 311
10/4/20253421 S RACINE AVEBridgeport11Completed7 daysInternetCity 311
10/4/20252896 S ARCHER AVEBridgeport11Completed6 daysInternetCity 311
10/4/20251300 W FULLER STBridgeport11Completed7 daysInternetCity 311
10/4/20256643 S ALBANY AVEChicago Lawn15Completed5 daysInternetCity 311
10/4/20253725 N NARRAGANSETT AVEDunning38Completed6 daysInternetCity 311
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