Hand delivery of census forms in rural areas began on Monday. It’s a bit early, but the Rural Blog explains why:

The forms for rural residents are being distributed two weeks before mailing of surveys to urban areas because of problems inherent in counting rural residents. Irregular addresses and more travel time between addresses are two of the issues that rural census-takers must address.

The post goes on to explain the difficulties of census work in rural and urban areas. For instance, the distance between addresses is rural areas is formidable, but language barriers are a hindrance in cities.