ANGERBURG, a circle in the government of Gumbinnen, and province of East Prussia, formerly a part of Poland. It extends over 374 square miles, or 239,360 acres. It is watered by the Angerap, which rises in several lakes, with which the district abounds. Population in 1849, 31,310, engaged in raising corn and flax, and in fresh-water fishing. The females are all employed in spinning linen yarn. Its capital bears the same name, and contained 240 houses and 3451 inhabitants.