Princeton Riverside Real Estate Summary September December 5, 2017 by limey admin November 2017: 3 homes sold in Riverside last month. The average days on market was 28. The average sold price for a home in the Riverside section of Princeton was $1,237,000. Click to see which homes sold in Princeton’s Riverside section or click to see Princeton Riverside homes for sale. *Source: TREND, information deemed reliable but not guaranteed.