SEE HOW DELAWARE CHANGED
Free map viewers built on the State of Delaware's own FirstMap data. Search any address, compare any two years side by side, measure what changed in acres or people, and download the maps — no account, nothing to install.
DELAWARE IMAGERY
Every State aerial photo of Delaware since 1926. Swipe between years over your own house and download full resolution.
1926 · 1937 · 1954 · 1961 · 1968 · 1992 … 2024
Open aerial photos →
DELAWARE LAND USE
How every acre was used in 2007, 2012, 2017 and 2022 — farms, forest, wetlands, homes, business — plus 1-meter land cover. See exactly what turned into what.
2007 · 2012 · 2017 · 2022 · 1 m cover 2013 · 2018
Open land use →
DELAWARE GROWTH
Every roof, road and parking lot, mapped at 1 meter. Change view lights up new pavement since 2007 in red; measure acres paved for any neighborhood.
2007 · 2012 · 2017 · 2022
Open growth →
DELAWARE POPULATION
The 2010 and 2020 Census by tract, block group or block: density, head count and race & ethnicity. Draw any area to total its people for both years.
Census 2010 · 2020
Open population →
DELAWARE COASTAL
Sea-level rise from high tide to +7 ft, the 100-year coastal flood today, 2050 and 2100, FEMA flood zones, marsh migration and 2014 vs 2023 lidar elevation.
MHHW → +7 ft · 2050 · 2100 · FEMA · lidar
Open coastal →
FIND ANY PLACE
Street address, parcel number, GPS or State Plane coordinates — and your spot carries over when you switch maps.
COMPARE TWO YEARS
Swipe, fade, flip-book or Change view, which colors only what changed between the two years.
MEASURE IT
Draw a box or pick a parcel and get acres, percentages, people and exactly what turned into what.
TAKE IT WITH YOU
Download PNG, JPEG or GeoTIFF with world files, data as GeoJSON / CSV / KML, and share a short link with a note.