Maps of Washington County maps are now available online. Visit their website at http://semogis.com/. You will need your parcel number to look up your particular area. Please be aware that Washington County sometimes removes property lines on their maps if you own more than one lot. They do this for their billing purposes. However, when they do this they only leave one of the lot numbers. This can make you think there is only one lot shown, but it may be multiple lots.
The plats are not the greatest in the world, but in most cases they should help you find lots. Please do not hesitate to contact the office if you have questions.
Click on a file to download.