RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4448 locations in the last 30 days (4604 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/23/20257139 S HARDING AVEWest Lawn23Completed9 daysAlderman's OfficeCity 311
9/23/2025125 E PERSHING RDGrand Boulevard3Completed8 daysPhone CallCity 311
9/23/20251717 W WOLFRAM STLake View32Completed9 daysMobile DeviceCity 311
9/23/20258727 S MUSKEGON AVESouth Chicago10Completed8 daysPhone CallCity 311
9/23/20255120 S UNIVERSITY AVEHyde Park5Completed1 dayPhone CallCity 311
9/23/20251438 N LAKE SHORE DR SBNear North Side43Completed8 daysMobile DeviceCity 311
9/23/20256827 S MARTIN L KING DRGreater Grand Crossing6Completed1 dayPhone CallCity 311
9/23/20256429 W IRVING PARK RDDunning38Completed8 daysPhone CallCity 311
9/23/20251415 W 72ND STWest Englewood17Completed7 daysPhone CallCity 311
9/23/20257641 S MARSHFIELD AVEAuburn Gresham17Completed8 daysPhone CallCity 311
9/23/20252740 N LAWNDALE AVELogan Square35Completed8 daysAlderman's OfficeCity 311
9/23/20251629 N FAIRFIELD AVEWest Town26Completed10 daysInternetCity 311
9/23/20255936 S MICHIGAN AVEWashington Park20Completed1 dayPhone CallCity 311
9/23/202522 W ERIE STNear North Side42Completed3 daysInternetCity 311
9/23/20256240 S LANGLEY AVEWoodlawn20Completed9 daysPhone CallCity 311
9/23/20252130 N KEDZIE AVELogan Square35Completed10 daysAlderman's OfficeCity 311
9/23/20252933 W BALMORAL AVELincoln Square39Completed7 daysPhone CallCity 311
9/23/20252933 W BALMORAL AVELincoln Square39Completed1 dayPhone CallCity 311
9/23/20253238 W HOLLYWOOD AVENorth Park39Completed7 daysPhone CallCity 311
9/23/20255823 N CHRISTIANA AVENorth Park39Completed1 dayPhone CallCity 311
9/23/20256550 N SEELEY AVEWest Ridge40Completed1 dayPhone CallCity 311
9/23/20254143 N RIDGEWAY AVEIrving Park33Completed9 daysPhone CallCity 311
9/23/20252444 W CUYLER AVENorth Center47Completed10 daysPhone CallCity 311
9/23/20252524 W FARRAGUT AVELincoln Square40Completed1 dayPhone CallCity 311
9/23/2025712 W 81ST PLAuburn Gresham6Completed9 daysPhone CallCity 311
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