Real estate Glendora CA average Median house price for zip code 91741, 91740 in Oct-Dec. 2014 on a single family house 3 bedroom with 2 bath Median price $320 per/SqFt. For Zip code 91740 single family home 3 bedroom 2 bath home Median price $287 per/SqFt. This is just an average and every home and location is slightly different. To find out what your home is worth please call, email or fill out form.