RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4676 locations in the last 30 days (4833 reports) · Last sighting 11 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/20254157 N LEAMINGTON AVEPortage Park38Completed1 dayPhone CallCity 311
9/15/20253432 N OTTAWA AVEDunning38Completed10 daysInternetCity 311
9/15/20255443 N MULLIGAN AVEJefferson Park45Completed9 daysPhone CallCity 311
9/15/20252223 W HUBBARD STWest Town27Completed8 daysInternetCity 311
9/15/20251946 N SEMINARY AVELincoln Park43Completed9 daysPhone CallCity 311
9/15/20251751 W 35TH STMcKinley Park12Completed14 daysInternetCity 311
9/15/20255612 N MAJOR AVEJefferson Park45Completed7 daysPhone CallCity 311
9/15/20251318 N ASTOR STNear North Side43Completed11 daysPhone CallCity 311
9/15/20256725 S KOMENSKY AVEWest Lawn23Completed10 daysPhone CallCity 311
9/15/20252208 W THOME AVEWest Ridge50Completed1 dayPhone CallCity 311
9/15/2025818 N LECLAIRE AVEAustin37Completed10 daysAlderman's OfficeCity 311
9/15/20251930 W ERIE STWest Town36Completed8 daysInternetCity 311
9/15/20254222 W HENDERSON STIrving Park30Completed10 daysMobile DeviceCity 311
9/15/20252209 W HIGHLAND AVEWest Ridge50Completed1 dayPhone CallCity 311
9/15/20254157 N RICHMOND STIrving Park33Completed11 daysInternetCity 311
9/15/20254749 S SPRINGFIELD AVEArcher Heights14Completed10 daysPhone CallCity 311
9/15/20253226 S PARNELL AVEBridgeport11Completed9 daysAlderman's OfficeCity 311
9/15/20257707 N PAULINA STRogers Park49Completed9 daysPhone CallCity 311
9/15/20253160 N MILWAUKEEAvondale31Completed9 daysSalesforce Mobile AppCity 311
9/15/20258923 S ABERDEEN STWashington Heights21Completed8 daysPhone CallCity 311
9/15/20251216 N LASALLE DRNear North Side2Completed4 daysInternetCity 311
9/15/20253042 N KENNETH AVEHermosa31Completed10 daysInternetCity 311
9/15/20253657 W OHIO STHumboldt Park27Completed8 daysPhone CallCity 311
9/15/20252310 W GIDDINGS STLincoln Square47Completed10 daysMobile DeviceCity 311
9/15/20257463 N RIDGE BLVDRogers Park49Completed9 daysAlderman's OfficeCity 311
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