RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4582 locations in the last 30 days (4739 reports) · Last sighting 23 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/16/20257646 S MORGAN STAuburn Gresham17Completed11 daysPhone CallCity 311
8/16/20255622 N NORDICA AVENorwood Park41Completed9 daysPhone CallCity 311
8/16/20255318 W SCHOOL STPortage Park31Completed11 daysPhone CallCity 311
8/16/20254926 N MOZART STLincoln Square40Completed12 daysMobile DeviceCity 311
8/16/20255341 W WINNEMAC AVEJefferson Park45Completed11 daysMobile DeviceCity 311
8/16/20251416 W CUYLER AVELake View47Completed11 daysInternetCity 311
8/16/20254123 N ASHLAND AVELake View47Completed9 daysInternetCity 311
8/16/20251720 W 44TH STNew City15Completed5 daysInternetCity 311
8/16/20253459 N KOLMAR AVEIrving Park30Completed10 daysInternetCity 311
8/16/20253501 N KOLMAR AVEIrving Park30Completed10 daysInternetCity 311
8/16/20252038 W FARGO AVERogers Park49Completed11 daysInternetCity 311
8/16/20251918 W ADDISON STNorth Center47Completed9 daysMobile DeviceCity 311
8/16/20255315 S NARRAGANSETT AVEGarfield Ridge23Completed9 daysMobile DeviceCity 311
8/16/20255415 S KARLOV AVEWest Elsdon23Completed9 daysPhone CallCity 311
8/16/20255417 S KARLOV AVEWest Elsdon23Completed9 daysPhone CallCity 311
8/16/20253026 S NORMAL AVEBridgeport11Completed10 daysInternetCity 311
8/16/20255213 S CENTRAL AVEGarfield Ridge23Completed9 daysPhone CallCity 311
8/16/2025152 W 103RD PLRoseland9Completed13 daysPhone CallCity 311
8/16/20254200 S CALIFORNIA AVEBrighton Park12Completed9 daysPhone CallCity 311
8/16/20252533 W FARRAGUT AVELincoln Square40Completed12 daysInternetCity 311
8/16/20255049 N NAGLE AVEJefferson Park41Completed9 daysPhone CallCity 311
8/16/20252723 N RIDGEWAY AVELogan Square35Completed11 daysMobile DeviceCity 311
8/16/20251734 N SAWYER AVEHumboldt Park26Completed9 daysInternetCity 311
8/16/20254434 N DOVER STUptown46Completed10 daysMobile DeviceCity 311
8/16/20251215 W GEORGE STLake View32Completed8 daysMobile DeviceCity 311
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