In 2008, delegations comprised of 845 international dignitaries representing 66 countries made official visits to the California Senate. The countries, ranked by number of visitors, were as follows: | |||
| COUNTRY | # VISITORS | COUNTRY | # VISITORS |
| CHINA | 245 | BULGARIA | 4 |
| MEXICO | 79 | MALAYSIA | 4 |
| DENMARK | 52 | UZBEKISTAN | 4 |
| EGYPT | 41 | POLAND | 3 |
| JAPAN | 40 | SERBIA | 3 |
| EUROPEAN UNION | 33 | BELGIUM | 2 |
| LIECHTENSTEIN | 24 | BOSNIA AND HERZEGOVINA | 2 |
| SPAIN | 24 | SAUDI ARABIA | 2 |
| NORWAY | 23 | SINGAPORE | 2 |
| CANADA | 22 | SLOVENIA | 2 |
| RUSSIA | 19 | BANGLADESH | 1 |
| GERMANY | 16 | BENIN | 1 |
| FINLAND | 15 | ESTONIA | 1 |
| INDONESIA | 13 | GREECE | 1 |
| AUSTRALIA | 12 | ICELAND | 1 |
| SWEDEN | 12 | INDIA | 1 |
| BRAZIL | 11 | IRELAND | 1 |
| AZERBAIJAN | 10 | IVORY COAST | 1 |
| CHILE | 10 | KOSOVO | 1 |
| AFGHANISTAN | 9 | LUXEMBOURG | 1 |
| ISRAEL | 8 | MACEDONIA | 1 |
| UKRAINE | 8 | MADAGASCAR | 1 |
| FRANCE | 7 | MOROCCO | 1 |
| PAKISTAN | 7 | MOZAMBIQUE | 1 |
| PHILIPPINES | 7 | OMAN | 1 |
| UNITED KINGDOM | 7 | PORTUGAL | 1 |
| AUSTRIA | 6 | ROMANIA | 1 |
| CROATIA | 6 | SLOVAKIA | 1 |
| HUNGARY | 6 | SOUTH AFRICA | 1 |
| NETHERLANDS | 6 | SRI LANKA | 1 |
| SOUTH KOREA | 6 | SWAZILAND | 1 |
| ITALY | 5 | SWITZERLAND | 1 |
| NEW ZEALAND | 5 | TAJIKISTAN | 1 |
The delegations studied a wide range of subjects, which are ranked below according to the number of visitors who studied them: | |||
| SUBJECT | # VISITORS | SUBJECT | # VISITORS |
| Legislative Process and Government | 262 | Budget/Fiscal | 28 |
| International Relations | 206 | Agriculture | 23 |
| California History | 164 | Public Safety | 8 |
| Education | 87 | (Bio) Technology | 7 |
| Transportation | 71 | Judiciary | 7 |
| Energy | 57 | Social | 6 |
| Environment | 39 | Immigration | 5 |
| Int'l Trade/Economic Development | 37 | Natural Resources/Water | 3 |
| Health | 31 | ||
Note: As some delegations studied more than one subject, the subject area numbers will not coincide with the number of visitors.