As of , there are 90 properties listed for sale in the city of Oakland and 90 properties listed for sale in the ZIP code 21550. Those 90 Oakland properties include 85 single family homes and 5 condos. This single family residential home located at 830 N 4th St in 21550 was last listed for $165,666. This is 34% below the median of $249,900 for that ZIP code and 34% below the current median price of $249,900 for Oakland. 830 N 4th St is roughly 782 square feet, which is 65% below the Oakland median of 2,250 and 65% below the 21550 ZIP code median of 2,250. This property's price per Sqft was $212, which is 54% above the current median price in 21550 of $138 and 54% above the Oakland median of $138 per square foot.