In 2011, delegations comprised of 1569 international dignitaries representing 132 countries made official visits to the California Senate. The countries, ranked by number of visitors, were as follows: | |||
| COUNTRY | # VISITORS | COUNTRY | # VISITORS |
| CHINA | 841 | ALBANIA | 7 |
| JAPAN | 71 | CZECH REPUBLIC | 7 |
| DENMARK | 38 | NEPAL | 7 |
| THAILAND | 34 | ALGERIA | 6 |
| VIETNAM | 32 | ARMENIA | 6 |
| INDONESIA | 30 | COLOMBIA | 6 |
| BRAZIL | 28 | JORDAN | 5 |
| PAKISTAN | 25 | BURMA | 5 |
| SPAIN | 18 | POLAND | 5 |
| HONDURAS | 17 | AZERBAIJAN | 4 |
| TANZANIA | 16 | COTE D'IVOIRE | 4 |
| CHILE | 15 | ECUADOR | 4 |
| EUROPEAN UNION | 15 | EL SALVADOR | 4 |
| INDIA | 14 | ETHIOPIA | 4 |
| SOUTH KOREA | 14 | IRAQ | 4 |
| ISRAEL | 13 | LATVIA | 4 |
| UKRAINE | 12 | MALAYSIA | 4 |
| EGYPT | 11 | MEXICO | 4 |
| RUSSIA | 11 | MOROCCO | 4 |
| BANGLADESH | 10 | TUNISIA | 4 |
| CANADA | 10 | TURKEY | 4 |
| KYRGYSTAN | 10 | UGANDA | 4 |
| MACEDONIA | 10 | UNITED KINGDOM | 4 |
| ARGENTINA | 9 | BELGIUM | 3 |
| SOUTH AFRICA | 9 | CAMEROON | 3 |
| PHILIPPINES | 8 | ESTONIA | 3 |
| UZBEKISTAN | 8 | GERMANY | 3 |
| KAZAKHSTAN | 3 | AFGHANISTAN | 1 |
| MONGOLIA | 3 | AFRICAN UNION | 1 |
| MOZAMBIQUE | 3 | AUSTRALIA | 1 |
| NEW ZEALAND | 3 | AUSTRIA | 1 |
| SENEGAL | 3 | BELARUS | 1 |
| ANGOLA | 2 | BELIZE | 1 |
| BAHRAIN | 2 | BENIN | 1 |
| BOLIVIA | 2 | BHUTAN | 1 |
| CONGO (REPUBLIC OF) | 2 | BOSNIA | 1 |
| DOMINICAN REPUBLIC | 2 | BOTSWANA | 1 |
| FRANCE | 2 | BRUNEI | 1 |
| GAZA | 2 | BURUNDI | 1 |
| GHANA | 2 | CHAD | 1 |
| GUATEMALA | 2 | CONGO (DEMOCRATIC REPUBLIC OF) | 1 |
| HAITI | 2 | COSTA RICA | 1 |
| HUNGARY | 2 | CROATIA | 1 |
| LEBANON | 2 | CYPRUS | 1 |
| LESOTHO | 2 | FIJI | 1 |
| NETHERLANDS | 2 | GABON | 1 |
| NIGERIA | 2 | GEORGIA | 1 |
| OMAN | 2 | ITALY | 1 |
| PARAGUAY | 2 | KENYA | 1 |
| PORTUGAL | 2 | KIRIBATI | 1 |
| SAUDI ARABIA | 2 | KUWAIT | 1 |
| SINGAPORE | 2 | LIBYA | 1 |
| SRI LANKA | 2 | MADAGASCAR | 1 |
| SUDAN | 2 | MALAWI | 1 |
| SWITZERLAND | 2 | MALDIVES | 1 |
| TURKMENISTAN | 2 | MAURITANIA | 1 |
| UNITED ARAB EMIRATES | 2 | MOLDOVA | 1 |
| URUGUAY | 2 | MONTENEGRO | 1 |
| NICARAGUA | 1 | SIERRA LEONE | 1 |
| NIGER | 1 | SLOVENIA | 1 |
| NORWAY | 1 | SURINAME | 1 |
| PALAU | 1 | SWAZILAND | 1 |
| PANAMA | 1 | TAJIKISTAN | 1 |
| PAPUA NEW GUINEA | 1 | TIMOR-LESTE | 1 |
| PERU | 1 | TOGO | 1 |
| ROMANIA | 1 | YEMEN | 1 |
| RWANDA | 1 | ZAMBIA | 1 |
| SERBIA | 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 | 469 | Budget/Finance | 48 |
| International Relations | 207 | Gender | 42 |
| Education | 116 | Social Services | 33 |
| Natural Resources/Water | 108 | Public Safety | 31 |
| Agriculture | 101 | Transportation | 31 |
| Environment | 86 | (Int'l) Trade/Economic Development | 19 |
| Energy | 79 | Health | 6 |
| Media Relations | 56 | ||