RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4410 locations in the last 30 days (4573 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/20252015 W HUNT AVEBeverly19Completed1 dayPhone CallCity 311
10/7/202510802 S HALE AVEMorgan Park19Completed1 dayPhone CallCity 311
10/7/20253429 W MEDILL AVELogan Square35Completed9 daysPhone CallCity 311
10/7/20252206 N KEDVALE AVEHermosa35Completed1 dayPhone CallCity 311
10/7/20252614 N HARDING AVELogan Square35Completed1 dayPhone CallCity 311
10/7/20252618 S HARDING AVESouth Lawndale22Completed1 dayPhone CallCity 311
10/7/20253800 W 85TH PLAshburn18Completed7 daysInternetCity 311
10/7/20251751 W ALBION AVERogers Park40Completed1 dayPhone CallCity 311
10/7/20253733 N GREENVIEW AVELake View44Completed1 dayPhone CallCity 311
10/7/20252032 N TRIPPHermosa35Completed9 daysSalesforce Mobile AppCity 311
10/7/2025415 W 117TH STWest Pullman21Completed3 daysPhone CallCity 311
10/7/20253825 N LAKEWOOD AVELake View44Completed1 dayPhone CallCity 311
10/7/20255046 N MELVINA AVEJefferson Park45Completed2 daysPhone CallCity 311
10/7/20255621 N MULLIGAN AVENorwood Park45Completed2 daysPhone CallCity 311
10/7/20256629 S CARPENTER STEnglewood16Completed3 daysPhone CallCity 311
10/7/2025856 N LAWNDALE AVEHumboldt Park27Completed13 daysPhone CallCity 311
10/7/20257219 W MYRTLE AVENorwood Park41Completed10 daysPhone CallCity 311
10/7/20251711 S LAFLIN STLower West Side25Completed3 daysInternetCity 311
10/7/20253559 S LOWE AVEBridgeport11Completed3 daysMobile DeviceCity 311
10/7/2025919 W 34TH PLBridgeport11Completed3 daysMobile DeviceCity 311
10/7/20251361 W WALTON STWest Town27Completed13 daysPhone CallCity 311
10/7/20255257 S TRIPP AVEArcher Heights23Completed2 daysAlderman's OfficeCity 311
10/7/20254451 S WOOD STNew City15Completed2 daysPhone CallCity 311
10/7/20254335 N MOODY AVEPortage Park38Completed10 daysInternetCity 311
10/7/20255738 S NATCHEZ AVEGarfield Ridge13Completed3 daysAlderman's OfficeCity 311
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