RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4592 locations in the last 30 days (4742 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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/21/20264140 N MOODY AVEPortage Park38Completed10 daysInternetCity 311
8/21/202611311 S CENTRAL PARK AVEMount Greenwood19Completed5 daysPhone CallCity 311
8/21/20265148 N MONITOR AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/21/202611321 S CENTRAL PARK AVEMount Greenwood19Completed5 daysInternetCity 311
8/21/20263314 N NEVA AVEDunning38Completed12 daysInternetCity 311
8/21/20267143 N WASHTENAW AVEWest Ridge50Completed7 daysInternetCity 311
8/21/20264748 S PRAIRIE AVEGrand Boulevard3Completed6 daysMobile DeviceCity 311
8/21/20262759 S HAMLIN AVESouth Lawndale22Completed13 daysInternetCity 311
8/21/20264420 N MENARD AVEPortage Park38Completed11 daysMobile DeviceCity 311
8/21/20264636 W WEST WEST END AVEAustin28Completed7 daysPhone CallCity 311
8/21/20267027 S LAFLIN STWest Englewood17Completed13 daysMobile DeviceCity 311
8/21/2026913 E 61ST STWoodlawn20Completed13 daysInternetCity 311
8/21/20261845 W OHIO STWest Town36Completed12 daysInternetCity 311
8/21/20263035 S BONFIELD STBridgeport11Completed4 daysPhone CallCity 311
8/21/20262028 W 68TH PLWest Englewood16Completed11 daysPhone CallCity 311
8/21/20263357 S LOWE AVEBridgeport11Completed12 daysMobile DeviceCity 311
8/21/20264943 N HAMLIN AVEAlbany Park39Completed12 daysInternetCity 311
8/21/20262828 S PRINCETON AVEArmour Square11Completed12 daysMobile DeviceCity 311
8/21/20262825 N MONT CLARE AVEMontclare29Completed10 daysMobile DeviceCity 311
8/21/20264053 N DAMEN AVENorth Center47Completed13 daysAlderman's OfficeCity 311
8/21/2026933 N HERMITAGE AVEWest Town1Completed11 daysMobile DeviceCity 311
8/21/20263215 W SUNNYSIDE AVEAlbany Park33Completed12 daysMobile DeviceCity 311
8/21/20265558 W EDMUNDS STJefferson Park45Completed12 daysMobile DeviceCity 311
8/21/20267724 W BELMONT AVEDunning38Completed13 daysPhone CallCity 311
8/21/20262119 N WHIPPLE STLogan Square1Completed11 daysMobile DeviceCity 311
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