Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| District | Location | Representative | Cook PVI | 2012 election results | Median household income (2011) |
| --- | --- | --- | --- | --- | --- |
| 2nd | Marin County and the North Coast | Jared Huffman | D+20 | 69.0%–27.0% Obama | $56,576 |
| 3rd | Fairfield , Vacaville , and the Sacramento Valley | John Garamendi | D+3 | 54.3%–43.1% Obama | $53,602 |
| 5th | Santa Rosa , Napa County , Vallejo , and Martinez | Mike Thompson | D+19 | 69.7%–27.4% Obama | $58,942 |
| 9th | Antioch and most of San Joaquin County | Jerry McNerney | D+6 | 57.8%–40.1% Obama | $52,209 |
| 11th | Most of Contra Costa County | George Miller | D+17 | 67.5%–29.9% Obama | $69,586 |
| 12th | Most of San Francisco | Nancy Pelosi | D+34 | 84.0%–12.5% Obama | $69,046 |
| 13th | Berkeley , Oakland , and San Leandro | Barbara Lee | D+37 | 87.5%–9.0% Obama | $56,906 |
| 14th | Most of San Mateo County | Jackie Speier | D+23 | 74.2%–23.6% Obama | $79,287 |
| 15th | Hayward , Union City , and the Tri-Valley | Eric Swalwell | D+16 | 68.0%–29.8% Obama | $82,179 |
| 17th | Fremont and northern Silicon Valley | Mike Honda | D+20 | 71.9%–25.5% Obama | $92,030 |
| 18th | Menlo Park and western Silicon Valley | Anna Eshoo | D+18 | 68.2%–28.9% Obama | $97,001 |
| 19th | San Jose and Morgan Hill | Zoe Lofgren | D+19 | 71.2%–26.5% Obama | $71,479 |
Question:
What is the location that has the 12th district?
Answer:
Most of San Francisco