RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4423 locations in the last 30 days (4577 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.

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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/31/202610028 S FOREST AVERoseland9Completed5 daysPhone CallCity 311
7/31/20264216 N WINCHESTER AVENorth Center47Completed11 daysInternetCity 311
7/31/20265056 W HURON STAustin37Completed5 daysInternetCity 311
7/31/20262131 N TRIPP AVEHermosa35Completed12 daysPhone CallCity 311
7/31/20262011 W CERMAK RDLower West Side25Completed13 daysPhone CallCity 311
7/31/20263731 W GIDDINGS STAlbany Park33Completed11 daysMobile DeviceCity 311
7/31/2026531 W ADDISON STLake View46Completed4 daysInternetCity 311
7/31/20265843 N VIRGINIA AVEWest Ridge50Completed5 daysInternetCity 311
7/31/20261533 N CLEVELAND AVENear North Side2Completed10 daysMobile DeviceCity 311
7/31/20262630 S SPAULDING AVESouth Lawndale25Completed11 daysPhone CallCity 311
7/31/20265429 S NORDICA AVEGarfield Ridge23Completed11 daysPhone CallCity 311
7/31/20266500 S CHAMPLAIN AVEWoodlawn20Completed10 daysMobile DeviceCity 311
7/31/20266115 S ARTESIAN AVEChicago Lawn16Completed6 daysInternetCity 311
7/31/2026418 N ADA STWest Town1Completed11 daysMobile DeviceCity 311
7/31/20261908 W BERWYN AVELincoln Square40Completed18 daysInternetCity 311
7/31/20265018 N MCVICKER AVEJefferson Park45Completed14 daysPhone CallCity 311
7/31/20263652 N MARSHFIELD AVELake View47Completed11 daysMobile DeviceCity 311
7/31/20262030 W SUPERIOR STWest Town36Completed14 daysMobile DeviceCity 311
7/31/20261624 N KILDARE AVEHumboldt Park26Completed12 daysPhone CallCity 311
7/31/20263156 N PAULINA STLake View32Completed12 daysMobile DeviceCity 311
7/31/20264116 N DAMEN AVENorth Center47Completed11 daysMobile DeviceCity 311
7/31/20263752 N SOUTHPORT AVELake View44Completed7 daysMobile DeviceCity 311
7/31/20264148 N MONITOR AVEPortage Park38Completed17 daysPhone CallCity 311
7/31/20266137 N LENOX AVEForest Glen39Completed10 daysMobile DeviceCity 311
7/31/20263900 W HURON STHumboldt Park37Completed12 daysInternetCity 311
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