In 2016, delegations comprised of 817 international dignitaries representing 125 countries, dependencies, and areas of special sovereignty made official visits to the California State Senate, ranked by number of visitors, they are as follows: | |||
| COUNTRY | # VISITORS | COUNTRY | # VISITORS |
| CHINA | 231 | JAMAICA | 2 |
| JAPAN | 87 | KAZAKHSTAN | 2 |
| ECUADOR | 33 | LAOS | 2 |
| FRANCE | 21 | MALI | 2 |
| NORWAY | 21 | MONGOLIA | 2 |
| SOUTH KOREA | 17 | MYANMAR | 2 |
| MEXICO | 16 | PARAGUAY | 2 |
| TIBET | 16 | PERU | 2 |
| ARGENTINA | 15 | PORTUGAL | 2 |
| INDIA | 14 | SENEGAL | 2 |
| DENMARK | 13 | SIERRA LEONE | 2 |
| AUSTRALIA | 12 | SRI LANKA | 2 |
| GHANA | 12 | SWITZERLAND | 2 |
| UKRAINE | 11 | TANZANIA | 2 |
| IRAQ | 10 | THAILAND | 2 |
| RUSSIA | 10 | TURKEY | 2 |
| SPAIN | 10 | UNITED KINGDOM | 2 |
| CANADA | 9 | URUGUAY | 2 |
| NIGERIA | 9 | UZBEKISTAN | 2 |
| PHILIPPINES | 9 | ANGOLA | 1 |
| KENYA | 8 | BAHAMAS | 1 |
| BELARUS | 7 | BAHRAIN | 1 |
| PAKISTAN | 7 | BOSNIA-HERZEGOVINA | 1 |
| HUNGARY | 6 | BRAZIL | 1 |
| MOROCCO | 6 | CAPE VERDE | 1 |
| SWEDEN | 6 | CYPRUS | 1 |
| BANGLADESH | 5 | DOMINICAN REPUBLIC | 1 |
| CUBA | 5 | ERITREA | 1 |
| EGYPT | 5 | ETHIOPIA | 1 |
| PALESTINIAN TERRITORIES | 5 | GEORGIA | 1 |
| SOUTH AFRICA | 5 | GERMANY | 1 |
| VENEZUELA | 5 | GUATEMALA | 1 |
| CAMBODIA | 4 | INDONESIA | 1 |
| CHILE | 4 | IRELAND | 1 |
| ISRAEL | 4 | KYRGYSTAN | 1 |
| JORDAN | 4 | LIBERIA | 1 |
| NEPAL | 4 | MACAU SAR | 1 |
| RWANDA | 4 | MACEDONIA | 1 |
| AFGHANISTAN | 3 | MADAGASCAR | 1 |
| BULGARIA | 3 | MALAWI | 1 |
| BURKINA FASO | 3 | MAURITANIA | 1 |
| CROATIA | 3 | MAURITIUS | 1 |
| CZECH REPUBLIC | 3 | MOLDOVA | 1 |
| CONGO (DEMOCRATIC REPUBLIC OF) | 3 | MONTENEGRO | 1 |
| EL SALVADOR | 3 | NICARAGUA | 1 |
| HONDURAS | 3 | NIGER | 1 |
| LEBANON | 3 | OMAN | 1 |
| MALAYSIA | 3 | PAPUA NEW GUINEA | 1 |
| MOZAMBIQUE | 3 | QATAR | 1 |
| POLAND | 3 | ROMANIA | 1 |
| SLOVAKIA | 3 | SAUDI ARABIA | 1 |
| TUNISIA | 3 | SERBIA | 1 |
| UGANDA | 3 | SLOVENIA | 1 |
| ZAMBIA | 3 | SOMALIA | 1 |
| ZIMBABWE | 3 | SOUTH SUDAN | 1 |
| BELGIUM | 2 | SUDAN | 1 |
| BOTSWANA | 2 | TAJIKISTAN | 1 |
| CHAD | 2 | TOGO | 1 |
| COTE D'IVOIRE | 2 | UNITED ARAB EMIRATES | 1 |
| DJIBOUTI | 2 | VIETNAM | 1 |
| GREECE | 2 | ||
| HAITI | 2 | ||
| ITALY | 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 |
| Government/Legislative Process | 298 | Natural Resources/Water | 27 |
| International Relations | 217 | Budget & Fiscal Review | 22 |
| Energy | 69 | Health | 21 |
| Agriculture | 52 | Education | 20 |
| Gender | 44 | Transportation | 20 |
| Environment | 38 | Public Safety | 15 |
| High Technology | 32 | Media Relations | 7 |
| International Trade/Economic Development | 27 | Judiciary | 6 |
Note: As some delegations studied more than one subject, the subject area numbers will not coincide with the number of visitors. | |||