Nonprofits in MASON CITY, IA
189 tax-exempt organizations with a return on IRS file.
- 4-H CLUBS & AFFILIATED 4-H ORGANIZATIONSEIN 42-1480962 · last filed 990-N for 2025
- AGING SERVICES COALITION OF NORTH IOWAEIN 46-4372258 · last filed 990-N for 2025
- AGVA FOUNDATIONEIN 82-3835135 · last filed 990-PF for 2024
- AL A LAKE T W 3CB537000 NORWEST BANK OF DES MOINES NA TTEEEIN 42-6101549 · last filed 990-PF for 2025
- ALANO SOCIETY INC OF MASON CITY IOWAEIN 88-4042902 · last filed 990-N for 2024
- AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEESEIN 42-0650475 · last filed 990-N for 2025
- AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEESEIN 42-1099571 · last filed 990-N for 2025
- AMERICAN LEGIONEIN 42-6057901 · last filed 990-N for 2025
- ANCIENT FREE & ACCEPTED MASONS OF IOWAEIN 23-7503287 · last filed 990-N for 2025
- ANCIENT FREE & ACCEPTED MASONS OF IOWAEIN 23-7103942 · last filed 990-N for 2025
- BAKERY CONFECTIONERY TOBACCO WORKERS AND GRAIN MILLERS INTL UNIEIN 42-0571086 · last filed 990-N for 2022
- BAUM-HARMON MERCY HOSPITALEIN 42-1500277 · last filed 990 for 2025
- BAUM HARMON MERCY HOSPITAL AND CLINICS FOUNDATIONEIN 26-2973307 · last filed 990 for 2025
- BEASLEY FAMILY FOUNDATION INCEIN 42-1263942 · last filed 990-PF for 2025
- BERTHA STEBENS CHILDRENS THEATRE FOUNDATIONEIN 42-1509580 · last filed 990-N for 2024
- BETH E REINHART CHARITABLE TRUSTEIN 47-2304877 · last filed 990-PF for 2025
- BROTHERHOOD OF LOCOMOTIVE ENGINEERS AND TRAINMENEIN 23-7328658 · last filed 990-N for 2025
- CARING PREGNANCY CENTEREIN 42-1276848 · last filed 990 for 2025
- CENTRAL SERVICES 2 5 12 INCEIN 27-2510520 · last filed 990 for 2025
- CERRO GORDO COUNTY MEDICAL SOCIETYEIN 42-0821216 · last filed 990-N for 2024
- CERRO GORDO TRAILS INCEIN 42-1517772 · last filed 990-N for 2025
- CERRO GORDO TRAP NEUTER RETURN AND WILDLIFE RESCUEEIN 30-1461961 · last filed 990-N for 2025
- CFT FOUNDATIONEIN 42-1519192 · last filed 990-PF for 2025
- CHARLIE BROWN COMMUNITY DAY CARE CENTEREIN 42-0938576 · last filed 990 for 2025
- CHORAL MUSIC GUILD INCEIN 42-1410588 · last filed 990-N for 2025
- CHRISTMAS CHEER FUND INCEIN 42-1131702 · last filed 990-EZ for 2026
- C JOSEPH PLAN K MONEY PURCHASE PLANEIN 42-1180917
- COLLABORATIVE SUMMER LIBRARY PROGRAMEIN 42-1519652 · last filed 990 for 2025
- COMMUNITY EDUCATION FOUNDATIONEIN 47-2457826 · last filed 990-PF for 2025
- COMMUNITY KITCHEN OF NORTH IOWAEIN 42-1285253 · last filed 990 for 2024
- DAVID & PHYLLIS MURPHY CHARITABLE FOUNDATIONEIN 42-1477942 · last filed 990-PF for 2025
- DELTA KAPPA GAMMA SOCIETYEIN 42-6096249 · last filed 990-N for 2025
- DEPARTMENT OF IOWA AUXILIARY TO THE VETERANS OF FOREIGN WARSEIN 71-1045596 · last filed 990-N for 2025
- DONALD J BECK TRUSTEIN 26-6717210 · last filed 990 for 2025
- DORIS AND RALPH PREUSS CHARITABLE TREIN 85-6218767 · last filed 990-PF for 2025
- DOWN SYNDROME ASSOCIATION OF NORTH CENTRAL IOWAEIN 38-3916660 · last filed 990-N for 2025
- EDUCATION FOUNDATION OF THE MASON CITY PUBLIC SCHOOLSEIN 42-1450042 · last filed 990 for 2025
- ELAINE M LANE TESTAMENTARY TRUSTEIN 82-5276023 · last filed 990-PF for 2025
- ELDERBRIDGE AGENCY ON AGINGEIN 42-1155559 · last filed 990 for 2025
- E R KEIG AND ALICE KEIG SCHOLARSHIP TRUSTEIN 59-6952608 · last filed 990-PF for 2025
- FARRER ENDOWMENT FOUNDATIONEIN 42-1214699 · last filed 990-PF for 2025
- FIELD MEMORIAL SCHOLARSHIP TRUSTEIN 42-6370219 · last filed 990-PF for 2025
- FIRST CITIZENS CHARITABLE FOUNDATION INCEIN 42-1451615 · last filed 990-PF for 2025
- FIRST CONVENANT CHURCH MASON CITY IAEIN 51-0139215
- FREEDOM INN HIS GRACE MINISTRYEIN 81-3699521 · last filed 990-EZ for 2025
- FRIENDS OF SEOUL FOREIGN SCHOOL INCEIN 42-0982442 · last filed 990 for 2025
- FRIENDS OF THE LIBRARY MASON CITYEIN 27-3118145 · last filed 990-N for 2025
- FUTURE FARMERS OF AMERICA IA14081 TALL CORN FFA ALUMNI ASSOCIATIONEIN 47-2546389 · last filed 990-PF for 2025
- FUTURE PROBLEM SOLVING PROGRAM INTERNATIONAL INCEIN 20-4878265 · last filed 990-N for 2025
- GARDENERS OF NORTH IOWAEIN 42-1263866 · last filed 990-N for 2025
- GAS & ELECTRIC EMPLOYEES CREDIT UNIONEIN 42-0269010 · last filed 990 for 2024
- GIVERS USAEIN 92-1815029 · last filed 990-N for 2024
- GOOD SHEPHERD GERIATRIC CENTER INCEIN 42-0725236 · last filed 990 for 2025
- GOOD SHEPHERD TELEPHONE REASSURANCE INCEIN 42-1440083 · last filed 990-EZ for 2025
- GRACE EVANGELICAL FREE CHURCHEIN 42-0885802
- HABITAT FOR HUMANITY INTERNATIONAL INCEIN 42-1408763 · last filed 990 for 2025
- HARDING ELEMENTARY PARENT TEACHER ORGANIZATIONEIN 42-1452568 · last filed 990 for 2023
- HAWKEYE HARVEST FOOD BANK CORPORATIONEIN 42-1184748 · last filed 990 for 2025
- HERBERT HOOVER PARENT TEACHER ORGANIZAIONEIN 42-1146985 · last filed 990-N for 2025
- HORSEMEN OF IOWA INCEIN 42-1229681 · last filed 990-N for 2025
- HUMANE SOCIETY OF NORTH IOWAEIN 42-6079047 · last filed 990 for 2024
- INTERNATIONAL ASSOCIATION OF FIRE FIGHTERSEIN 42-6095935 · last filed 990-N for 2025
- INTERNATIONAL ASSOCIATION OF LIONS CLUBSEIN 42-0705815 · last filed 990-N for 2024
- INTERNATIONAL BROTHERHD - BOILRMKRS IR SHP BLDRS BLCKSMTH FRGRS & HLPREIN 42-6066360 · last filed 990-EZ for 2025
- IOWA ASSOCIATION OF WOMEN POLICEEIN 42-1184294 · last filed 990-N for 2024
- IOWA FARM BUREAU FEDERATIONEIN 42-0685004 · last filed 990 for 2025
- IOWA INDEPENDENT FILM FESTIVALEIN 46-1860737 · last filed 990-N for 2024
- IOWA ODD FELLOWS AND ORPHANS HOMEEIN 42-0818810 · last filed 990 for 2025
- IOWA OPERATION LIFESAVEREIN 30-0093240 · last filed 990-EZ for 2025
- IOWA UNDERWATER SEARCH & RESCUE INCEIN 42-1510522 · last filed 990-N for 2025
- JEFFERSON PARENT-TEACHER ORGANIZATIONEIN 42-1271690 · last filed 990-EZ for 2025
- KINNEY-LINDSTROM FOUNDATION INCEIN 42-6037351 · last filed 990-PF for 2025
- KIWANIS CLUB OF MASON CITY RIVER CITY FOUNDATIONEIN 39-3344577 · last filed 990-N for 2025
- KIWANIS INTERNATIONAL INCEIN 23-7273434 · last filed 990-N for 2024
- KNIGHTS OF COLUMBUSEIN 23-7546707 · last filed 990-N for 2023
- KNIGHTS TEMPLAR OF THE UNITED STATES OF AMERICAEIN 23-7618534 · last filed 990-N for 2024
- KOESTER NON-PROFIT SERVICESEIN 82-3358385 · last filed 990-N for 2025
- LAVERNA M SMEDLEY CHARITABLE FOUNDATIONEIN 61-1934955 · last filed 990-PF for 2025
- LEAGUE OF WOMEN VOTERS OF NORTH IOWAEIN 88-0645459 · last filed 990-N for 2025
- LEE ENDOWMENT FOUNDATIONEIN 42-1074052 · last filed 990-PF for 2025
- LINCOLN INTERMEDIATE PARENT TEACHER ORGANIZATIONEIN 27-3938958 · last filed 990-N for 2024
- LIVING FREE MINISTRIESEIN 81-2509984 · last filed 990-EZ for 2026
- MACNIDER ART MUSEUM FOUNDATIONEIN 42-1462661 · last filed 990 for 2025
- MARGARET WOLF SCHOLARSHIP TREIN 42-6565479 · last filed 990-PF for 2025
- MASON CITY CHAMBER OF COMMERCEEIN 42-0398820 · last filed 990 for 2025
- MASON CITY CHAMBER OF COMMERCE FOUNDATIONEIN 42-1505507 · last filed 990 for 2025
- MASON CITY CLINIC P C TRUSTEIN 42-1369969 · last filed 990 for 2025
- MASON CITY COMMUNITY SCHOOL DISTRICT 7-12 PTOEIN 27-3330215 · last filed 990-N for 2021
- MASON CITY COMMUNITY THEATRE INCEIN 23-7027000 · last filed 990-EZ for 2025
- MASON CITY COUNTRY CLUB CORPEIN 42-0628440
- MASON CITY DOWNTOWN ASSOCIATIONEIN 48-1256121 · last filed 990-EZ for 2024
- MASON CITY EDUCATION ASSOCIATIONEIN 42-0932426 · last filed 990-N for 2025
- MASON CITY FARMERS MARKETEIN 33-4124622 · last filed 990-N for 2025
- MASON CITY FOUNDATIONEIN 42-1375606 · last filed 990 for 2024
- MASON CITY LITTLE LEAGUE INC D B A MASON CITY YOUTH BASEBALLEIN 42-1342767 · last filed 990-EZ for 2025
- MASON CITY LODGE 1328 LOYAL ORDER OF MOOSEEIN 42-0386600 · last filed 990 for 2025
- MASON CITY MOHAWK BOOSTER CLUBEIN 42-1133345 · last filed 990 for 2025
- MASON CITY PUBLIC LIBRARY FOUNDATION INCEIN 42-1263454 · last filed 990 for 2025
- MASON CITY SCHOOLS INSTRUMENTAL MUSIC BOOSTERS FOUNDATIONEIN 42-1405553
- MASON CITY SOCCER CLUBEIN 46-5623679 · last filed 990-EZ for 2023