In 2007, delegations comprised of 873 international dignitaries representing 71 countries made official visits to the California Senate. The countries, ranked by number of visitors, were as follows: | |||
| COUNTRY | # VISITORS | COUNTRY | # VISITORS |
| CHINA | 266 | EL SALVADOR | 2 |
| EGYPT | 105 | ESTONIA | 2 |
| JAPAN | 82 | INDONESIA | 2 |
| GERMANY | 58 | IRELAND | 2 |
| AUSTRIA | 34 | KOSOVO | 2 |
| ARGENTINA | 28 | MACEDONIA | 2 |
| BRAZIL | 26 | PAKISTAN | 2 |
| UNITED KINGDOM | 26 | UKRAINE | 2 |
| FRANCE | 23 | VENEZUELA | 2 |
| INDIA | 20 | ALBANIA | 1 |
| NORWAY | 20 | BENIN | 1 |
| VIETNAM | 18 | BURKINA FASO | 1 |
| AUSTRALIA | 13 | CAMBODIA | 1 |
| ICELAND | 10 | CAMEROON | 1 |
| ITALY | 10 | CHAD | 1 |
| SOUTH KOREA | 10 | DENMARK | 1 |
| CZECH REPUBLIC | 9 | GEORGIA | 1 |
| CANADA | 7 | GUATEMALA | 1 |
| RUSSIA | 7 | GUINEA | 1 |
| MEXICO | 6 | HONDURAS | 1 |
| NEW ZEALAND | 6 | KAZAKHSTAN | 1 |
| THAILAND | 6 | LAOS | 1 |
| NIGERIA | 5 | LUXEMBOURG | 1 |
| AZERBAIJAN | 4 | MONGOLIA | 1 |
| ISRAEL | 4 | MOROCCO | 1 |
| EUROPEAN UNION | 3 | MYANMAR | 1 |
| GREECE | 3 | NIGER | 1 |
| HUNGARY | 3 | PANAMA | 1 |
| SWEDEN | 3 | PARAGUAY | 1 |
| BELGIUM | 2 | PHILIPPINES | 1 |
| BOSNIA AND HERZEGOVINA | 2 | SINGAPORE | 1 |
| BULGARIA | 2 | SLOVENIA | 1 |
| COLOMBIA | 2 | SPAIN | 1 |
| COSTA RICA | 2 | SYRIA | 1 |
| CROATIA | 2 | TURKEY | 1 |
| CYPRUS | 2 | ||
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 |
| International Relations | 327 | Transportation | 52 |
| Legislative Process and Government | 305 | Tribal | 43 |
| Education | 241 | Social | 20 |
| Energy | 116 | Agriculture | 19 |
| Int'l trade/economic development | 115 | Budget/Fiscal | 18 |
| Environment | 97 | Natural resources/water | 17 |
| California History | 71 | Judiciary | 8 |
| Health | 63 | Immigration | 1 |
| (Bio) Technology | 61 | ||
Note: As some delegations studied more than one subject, the subject area numbers will not coincide with the number of visitors.