RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4500 locations in the last 30 days (4649 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/24/20264644 W ADDISON STPortage Park30Completed9 daysInternetCity 311
8/24/20261730 N DRAKE AVEHumboldt Park26Completed16 daysInternetCity 311
8/24/20264818 N BERNARD STAlbany Park33Completed15 daysInternetCity 311
8/24/20264245 N MILWAUKEE AVEPortage Park45Completed7 daysAlderman's OfficeCity 311
8/24/2026827 E 88TH PLChatham8Completed2 daysPhone CallCity 311
8/24/20267924 S EBERHART AVEChatham6Completed8 daysPhone CallCity 311
8/24/20267048 S UNION AVEEnglewood6Completed8 daysPhone CallCity 311
8/24/20268234 S PAULINA STAuburn Gresham17Completed10 daysPhone CallCity 311
8/24/20262649 S KOMENSKY AVESouth Lawndale22Completed10 daysPhone CallCity 311
8/24/20263513 N SEMINARY AVELake View44Completed9 daysPhone CallCity 311
8/24/20264918 W WASHINGTON BLVDAustin28Completed10 daysPhone CallCity 311
8/24/2026248 W 31ST STArmour Square11Completed9 daysInternetCity 311
8/24/20263948 W OHIO STHumboldt Park37Completed15 daysPhone CallCity 311
8/24/20265419 W CULLOM AVEPortage Park38Completed8 daysPhone CallCity 311
8/24/20265804 S MASSASOIT AVEGarfield Ridge13Completed11 daysInternetCity 311
8/24/20267400 N WESTERN AVEWest Ridge50Completed16 daysPhone CallCity 311
8/24/202611345 S LANGLEY AVEPullman9Completed2 daysInternetCity 311
8/24/20264347 N PAULINA STLake View47Completed15 daysPhone CallCity 311
8/24/20262426 W AUGUSTA BLVDWest Town36Completed10 daysInternetCity 311
8/24/20262533 W CONGRESS PKWYNear West Side28Completed10 daysInternetCity 311
8/24/20262114 N MONITOR AVEBelmont Cragin36Completed10 daysPhone CallCity 311
8/24/20263019 N LAMON AVEBelmont Cragin31Completed10 daysInternetCity 311
8/24/20261801 W LUNT AVERogers Park49Completed16 daysPhone CallCity 311
8/24/20264146 N HARDING AVEIrving Park39Completed15 daysPhone CallCity 311
8/24/20265930 N LEONARD AVEJefferson Park39Completed15 daysAlderman's OfficeCity 311
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